Baka to Tesuto to Syokanju:Volume10 The Fifth Question

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The Fifth Question

Please answer the following question:

Please calculate the area of the shaded region. Use π as the circular constant.

BTS pi.jpg

Himeji Mizuki answer:

Assuming that the radius of the small circle is r, and the circumference as ℓ.


ℓ = 2πr


The question asks for the area between radius 1 and 3, so we’ll call it ‘S’.

BTS Integrate.jpg

Therefore, the answer is 8π.

Teacher's Comment:

Well answered. This is a standard question for area.

Yoshii Akihisa's Answer:

[1]

Teacher's Comment:

It's been a while since I felt my veins popping.

Tsuchiya Kouta's Answer:

[2]

Teacher's Comment:

Come over to the counselling room. I will like to hear your explanation.


Having finished our strategic meeting, we’re all feeling very motivated, what awaits us is the replenishment tests as we have to replenish the marks we lost before noon.

“…”

There’s still a lot of questions I can’t understand, so I’ll try to answer with the best of my ability.

Answer, skip, answer, skip, answer halfway, skip, skip, skip

As I continue to write, the difficulty of the questions becomes harder and harder. It looks like the questions at the back are ones I can’t answer, so I jump back to the front to answer.

“(Scribble scribble scribble scribble scribble)”

“(Scribble scribble scribble scribble scribble)”

Minami and Himeji-san are near me, Minami filling her maths points, and Himeji-san filling her chemistry points. Both of them are writing with their pens practically glued to their hands.

It’s dangerous to let both of them leave the frontlines, but there’s a good reason why we’re doing this.

Minami’s taking the replenishing test because her best subject has points depleted.

Himeji-san’s taking part in the replenishment test because we heard that Kubo-kun’s taking the replenishment test.

We need Himeji-san’s strength to stop Kubo-kun's powerful attack, so Himeji-san’s taking the replenishment tests at this moment.


“Ono, Asaga, Mitarai, go to the second level for standby. Try and fight using combined subjects. They switched subjects three times, so there should be quite a lot of enemies with depleted combined subjects points. Also, I hope you can try and make some big actions to lure them.”

“““Understood.”””

“Saitou, bring the physics teacher near the stairs. I’m going to use a diversion to make them think the subject will be changed to physics and change their members.”

“Affirmative.”

“Once Saitou takes action, Watarai, go get ready and change the subject on the linkway to world history. Harada, follow their actions and lead the reinforcements with Manaka, Mutou, Watanabe.”

Yuuji continues to give commands one after another as his voice can be heard from afar. He has never given such detailed commands in our battles before, and this shows how strong the opponent is.

However, this also means that we—who weren’t treated seriously when we challenged D class to a war half a year ago, is now able to fight this powerful A class as an opponent head on.

We, who were viewed as a bunch of idiots back then, have gained admiration from everyone.

As I think about this, my hand that’s holding the pen becomes a little more forceful. Maybe this might be the first time I feel that the summoning war is interesting.


The replenishment tests lasted quite a while.


“Fuu~ finally over…”

Once the second check was over, my modern language’s replenishment test is over. My scores should be the same. Now, once I hand my script over to the teacher for marking—


“SAKAMOTO!! KUBO APPEARED!!!”


At this moment, this intel came flying into our ears.

“Kubo? That guy should need some time before he can get back onto the battlefield.”

On hearing the report, Yuuji immediately frowned.

Himeji-san’s still having the exams, but Kubo-kun’s back on the battlefield. This itself is weird as Himeji-san is taking the replenishing tests at the same time as Kubo-kun in order to fight him, so both of them should be back on the battlefield at the same time.


“No, that’s definitely Kubo! Anyway, hurry up and send reinforcements!”


But based on the report, it seems that Kubo-kun’s back on the battlefield.

Both of them are taking the tests at the same time, but they’re leaving at different times. In that case, the only possibility is—

“In other words, that bastard ended the replenishment tests earlier!”

This means that Kubo-kun took lesser time for the replenishment tests.

“Damn it…he’s a model student, and yet he’s using such underhanded methods!”

Kubo-kun’s actions are really not to be expected of A class. His act of handing in the replenishing test earlier is more of our F class’ style.

If we consider Kubo-kun’s breakthrough ability, there’s now no time to wait for Himeji-san to return. Even if she can hand in her paper earlier, the opponent will break through our defenses if we wait for the teacher to finish marking the scripts.

If we can send in our remaining forces, we can stop Kubo-kun. Kubo-kun’s just attacking without bothering to defend, so everyone should be able to wear his points down if we all attack with a suicidal mindset.

But doing this will cause our side to lose my people. With many of us dying, the chances of the final strategy succeeding will be lowered. The plan that everyone hoped that would grant our wish will fail easily.


—I want to go over.


I thought.

I hope Yuuji leave Kubo-kun to me so that we can focus our forces in the plan. I want to gamble on this in order to increase the chances of the final strategy succeeding.

I was completely helpless when I met Kubo-kun before noon.

And I don’t have any decisive strategies of winning here.

If I go over now, I won’t be able to wait for the teacher to give me the modern language score. In that case, I have to give up precious time to replenish.

There’re too many disadvantageous factors.

In contrast, there’s practically no advantage to me. I still have some confidence in my summoned beast control—this only advantage is the only chance of winning I have that I’m using to encourage myself.

Normally, I won’t be doing such a disadvantageous bet, and I won’t even think about this.

This should be the case, but—

“Akihisa! Scramble! Hurry up and stop Kubo!”

Yuuji immediately says without hesitation.

“Oi, Sakamoto, Yoshii’s still waiting for the teacher to mark the modern language paper—”

“We have no time to wait! Stopping Kubo is more important here! Mori and Hirata, follow Akihisa. You’ll be the support!”

Such a fast and decisive choice. Even I do feel that my urging self is rather stupid.

“Can you do it, Akihisa?”

Yuuji stares at my eyes as he asks.

Before answering, I have to check something.

“Yuuji, Kubo-kun doesn’t look like he’ll hold back no matter who the opponent is.”

“Ahh, I know that, but I have to ask you.”

Yuuji’s eyes aren’t showing any signs of joking. Does this guy really feel that I can fight Kubo-kun? Does he really feel that I can fight the 2nd ranked in our year?

This guy’s really here? Even I, who wanted to raise this plan, is doubting whether I can stop Kubo-kun.

“Akihisa, if it’s you, you can definitely stop Kubo.”

Yuuji concludes decisively as if he’s trying to nudge me from behind.

These words blow aside all doubts and anxiety in my mind.

“Understood. I’ll definitely stop him.”

“Sorry for making you lose the marks you worked so hard to earn.”

There’s no need for Yuuji to apologize for this. I even want to thank him.

“One more step before we fight it out. Listen up…we mustn’t let him through!”

“““Understood!”””

As we answer back, I rush out to the corridor with Mori-kun and Hirata-kun.

Then, we see the opponents rushing over here.

“Yoshii, it’s A class! Two of them broke through the line so quickly!”

There’s only 2 people for now, but if some people are able to break through like this, it shows that the defense line on the front is collapsing gradually because of Kubo-kun. Now’s a time where we have to fight for every single second. Not a single moment of hesitation is allowed!


“You intend to interfere with Kubo-kun? I won’t let you do so, Yoshii-kun! Summon!”


The girl who comes running over here has permission of Ujiie-sensei as she summons.

“Gek! Isn’t that Satou Miho?”

Mori-kun’s words cause me to remember. That person is Satou-san who fought against me half a year ago. I’m not very familiar with her, so I can’t remember her name immediately.

“What should we do? Yoshii. She’s rather powerful!”

“We take her on!”

“WHAT TAKE HER ON! YOU WERE DEFEATED THOROUGHLY BY HER HALF A YEAR AGO! IS THIS REALLY ALRIGHT?”

“—Summon!”

I didn’t answer Mori-kun’s words as I run and call out my summoned beast.


A class, Satou Miho, Japanese History, 281 points.

Vs

F class, Yoshii Akihisa, Japanese History 189 points


Satou Miho-san beat me thoroughly in physics the last time when we challenged A class to a summoning war half a year ago. At that time, I wasn’t able to fight with her at all.

But if it’s a duel of Japanese History—

“Yoshii-kun, let’s go!”

Satou-san let her summoned beast raise its weapon as she charge at me.

I let my summoned beast charge from the front, and as we move by each other, I use my wooden sword to hack at the opponent’s body before quickly turning back to hit the opponent’s back.


A class, Satou Miho, Japanese History, 95 points.

Vs

F class, Yoshii Akihisa, Japanese History 189 points


“Eh…”

Satou-san gives a shocked expression, not knowing what happened, perhaps because she let her guard down because of the overwhelming victory she had before.

If it’s a battle using Japanese History, I don’t think I can lose!

“Nice going Yoshii! If the opponent’s Japanese History score is like this, I can barely take on the enemy!”

“Me too! Leave this person to us! Summon!”

“Thanks, I’ll leave it to you, Mori-kun, Hirata-kun!”

We switch over on who’s to deal with Satou-san, and I continue to run forward.

Kubo-kun…you toyed me before noon, but I’m not going to let you do as you wish. I’ll definitely stop you from moving forward in order to win this war!

I move through the old building and reach my destination, the linkway. I see everyone from F class in a disadvantageous due to the collapsing formation.


“Oi! It’ll be bad if we continue to let him through!”

“Talk is cheap here! Who can stop that monster!”

“Everyone in F class, I’m sorry, but can you please let me through?”

“WHO’LL LET YOU THROUGH!? EVEN WE HAVE TIMES WHERE WE CAN’T BACK AWAY!”

“—It can’t be helped then. Let’s settle this.”

“HOW CAN WE LOSE!!!”


A class, Kubo Toshimitsu, World History, 323 points

Vs

F class, Takashi Atsuya, DEAD


Takahashi-kun’s desperate attack grazed the opponent’s shoulder, and Kubo-kun’s giant mace sliced down Takahashi-kun’s summoned beast head.

“Let’s move forward, Kinoshita-san.”

“Thank you, Kubo-kun. Then, we’ll leave the sweeping here to Okui-san and the rest. Let’s deal with Sakamoto-kun directly and end this war.”

With Kubo-kun leading, A class swept their way here. They have about 10 people with them, trying to break through the perimeter F class set at the linkway.

However—

“DON’T THINK YOU CAN GET YOUR WAY!!”

“!?”

The summoned beast walking in front of Kubo-kun stops to block my attack.


A class, Kubo Toshimitsu, World History, 323 points

Vs

F class, Yoshii Akihisa, World History, 158 points


“Yoshii-kun…!”

“Kubo-kun, it’s not like you to submit your script early. No need to rush things. Slow down here!”

The system shows my marks and Kubo-kun’s once it was depleted by Takahashi-kun’s attack.

Right now, Kubo-kun’s world history scores aren’t more than 400, so if he doesn’t use the power of the bracelet, we may have a chance!

“Nice going, Yoshii!”

“Now! Those still alive, gather here! We need to regroup with forwards and defenders!”

My comrades from F class immediately regroup and get into action to hold off Kinoshita-san and the rest behind. Their thirst to repay and the countless battle experience isn’t for show.

Also—

“Yoshii-kun. We have a war here, so I can’t involve personal feelings here, but at least I don’t want you to feel guilty. Can you please leave before you feel the feedback?”

Kubo-kun’s right in front of me. If we force him back, we’ll be able to regroup our defense.

“That’s my line, Kubo-kun. Everyone in A class is kind, but winning this war is our long-awaited wish, so we can’t back away here.”

“…I understand. If you say so, I’ll make my resolve here.”

Kubo-kun’s summoned beast exchange glares with my summoned beast as we face off.

My opponent is holding his specialty weapon Deathscythe in a diagonal position, and it leaps at me. Kubo-kun can’t use the power of the bracelet, but his score is still more than 300 points, and the onrushing speed isn’t small.

However, I went through lots of battles during this half a year. No matter how fast the opponent is, this straightforward attack can’t possibly hit me.

I can predict the direction the opponent will be attack at from the way the opponent rushes in, the posture and the weapon type. Kubo-kun looks like he’s going to use a horizontal scythe that can maximize the attack range. Like before, he has no intention of defending.

“Fuu…”

I already predicted Kubo-kun’s attack path, so I exhale slightly and lean down to avoid his attack.

No matter how much the marks have improved by, it’s impossible to do this technique without actual combat experience. Including the study camp, Kubo-kun only had combat experience 4 times, so I definitely won’t be beaten by his attack!

“Ku…!”

Kubo-kun’s summoned beast pulls back the deathscythe that missed and raises it high this time to reveal a large overhead cleave. Based on that position, he’ll definitely swing the scythe down. No matter how strong the opponent’s strength is, it’s not hard to dodge such a big move.

I let my summoned beast move sideways and swing the wooden sword right at the opponent’s body with minimal action.


A class, Kubo Toshimitsu, World History, 303 points

Vs

F class, Yoshii Akihisa, World History, 158 points


My summoned beast give a light damage to the opponent and quickly leaps away from its position. At that instant, the deathscythe rips through a space no one’s at.

I already saw that even with a little damage, Kubo-kun will ignore it and continue to attack. In that case, I’ll dodge the hit and give a small yet sharp attack.

“…”

Kubo-kun’s summoned beast uses its right hand to wield the two-handed scythe, perhaps because he felt that big strikes won’t hit me with my posture like this, while the left hand is clenched. He probably wants to use the fist that strikes faster and pulls back faster to stop my attack and use the deathscythe when I stop. As expected of Kubo-kun, his analytical and decision-making abilities are really amazing.

This time, Kubo-kun’s summoned beast raises the deathscythe back onto the shoulder, and it then charges right at me.

I gather my concentration and let my summoned beast use more delicate movements.

My opponent raises its fist, while I aim for the left shoulder. Klang. A soft and sharp sound rings. This attack can’t cause damage to Kubo-kun with his high marks, but this isn’t my aim.

“…”

Kubo-kun’s summoned beast can’t swing its fist out as the starting point of the movement is hit. In that case, Kubo-kun will think of using that deathscythe and let his summoned beast swing it in the right hand, but the power and speed by swinging with one hand isn’t enough, so even I can block it with my points.

This time, the one attacking is me. I let my summoned beast rush at the opponent, pretending to attack. My summoned beast then dodges the fist that cuts through the air and swing out the wooden sword. However, this move is blocked by the opponent’s deathscythe in its right hand.

I didn’t stop as I quickly pull back. The opponent’s left fist misses.


“Oi oi oi…that Yoshii, is he for real…?”

“…Fighting against that Kubo head on. He must be mad…”


The tense attack and defense battle continue. A normal opponent will probably make much bigger movements due to anxiety, but Kubo-kun is rather calm as he controls his summoned beast within the best of his ability.

I want to force the opponent back, but the attack power isn’t enough. Kubo-kun can win if he can hit once, but he’s unable to hit the target. Everyone in F class is collapsing in formation, but they’re still fighting alongside their comrades. However, they’re starting to be pushed by the opponent.

Just when I’m thinking that this situation can’t last for long, she appears.

“Sorry to keep you waiting, Akihisa-kun! Please move aside! Summon!”

“Okay! Himeji-san!”

“!? Damn—”

My summoned beast move aside, and the fiery path blaze through the space I made.

Kubo-kun’s summoned beast became the target, and was slow in dodging as the right half of its body is burned off.


A class, Kubo Toshimitsu, World History, 34 points

Vs

F class, Himeji Mizuki, World History, 379 points


The system shows the points depleted in the damage Kubo-kun took and the power Himeji-san used.

Should I be saying that Kubo-kun’s amazing for not dying in battle after taking the bracelet attack, or should I say that Himeji-san’s amazing for being able to nearly kill Kubo-kun even if a missed attack? The clash between two people with high marks show that I can’t determine the outcome.

“…Sorry, Kinoshita-san. I have to retreat and replenish my points here.”

Kubo-kun isn’t stunned by the sudden change in situation as he quickly retreats from the battle area.

We’re unable to defeat the enemy thoroughly, but we managed to force them back. Now we’ll be able to regroup our defenses.

“Everyone, get in line!”

“““CHARGEEE!!!”””

My allies never let go of this chance as everyone tries to regroup in a lance team formation with Himeji-san at the center. I continue to dash forward to stop Kinoshita-san who’s trying to stop them.

“You’re really meddlesome, Yoshii-kun. I should have tried to find a way to get rid of you immediately when we surrounded you this morning.”

Kinoshita-san takes my summoned beast’s attack as she says.

“You flatter me, Kinoshita-san. It’s thanks to Himeji-san’s power that we could make Kubo-kun retreat.”

“No, Himeji-san is really strong, but that’s a strength that can be predicted and countered. Those opponents that can be countered through planning aren’t scary even if they’re scary.”

“That means I can’t be predicted?”

“Yes, that’s because you’re an idiot, Yoshii-kun.”

“…”

I’m rather hurt.

“Just joking. What I mean is that you can call out two summoned beasts even with low points, and you’re the Punishment Inspector. You’re more of a threat than those who are simply strong. Of course, the scariest is Sakamoto-kun who can make use of you to the maximum and manipulate the situation.”

Kinoshita-san mutters. I suspect if I really have such a threatening ability, but it’s rather bad for us F class if the enemy knows of our situation like that. If A class doesn’t know anything, they’ll drop their guard thinking that we’re the worst class in the entire year, and they won’t even bother checking on Muttsurini or Himeji-san’s whereabouts. Maybe our only chance of beating A class is during that war half a year ago. I couldn’t help but think.

“Akihisa-kun, it’s alright now! Please retreat!”

Himeji-san’s voice reaches my ear, and my side’s reformation seems to be complete.

In that case, there’s no need for me to appear.

“Bye then, Kinoshita-san.”

“Humph, I definitely won’t let you run away the next time.”

It seems Kinoshita-san doesn’t want to rush over when our side is reorganized, so she doesn’t try to attack me while I’m retreating back.

Notes

  1. Supposed to be pronounced as eπ. Sounds like ippai, which means many
  2. Oπ sounds like oppai, which means breasts