cirno, kamishirasawa keine, daiyousei, and ex-keine (touhou) drawn by tenko_(gintenko)

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    東方４コマ１７０

    東方４コマ１７０でございます！ひさしぶりのケーネ先生の授業。大ちゃんは良い子！あ・・あと新しいパソコン買いました・・・といってもパーツ注文したというわけでまだ届いてないでふ・・・届いたら作らないと・・・全部で９５０００円かかった・・・orzでもこれであと又４年はいける！ちょっとまじめに描くスピードあげます・・帰ってすぐ寝るのがいかんのかなぁ・・でも寝ないともたん・・でも少し白黒もなれてきたじぇｗｗｗ

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    FWP
    [hidden]

    Chen is 2400 years old and Ran is 2600 years old.
    It seems that 1500 years ago, the sum of Ran's age and Chen's age, times two, equaled Yukari's age.
    In which case, just how old is Yukari now?

    (2400-1500)+(2600-1500)X2+1500=
    (900)+(1100)X2+1500=
    (2000)X2+1500=
    4000+1500=
    5500

    NOW I remember why I could only fit 3 problems on a single paper in school.

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