注目の話題: 昭和時代の方々に質問！; 子ありと子なしはどちらが老後安泰？; 子どもができたら

Science,English,and math 4th

No.215　21/04/04 08:41
燻し銀三 ( 60代 ♂ IJ7P0b ) あ+あ-

《A father of nuclear weapon and the estimation on Fermi》

3『Calculating the presumption number on the each element』

Presumption number 2, the ration on the household which possesses the piano.

...though the school which the author went to wasn’t coeducational, so the one who learned to piano was a few in the class.

So we set up that the households which possesses the piano make up for 10% in the class.

When being in junior high school or being in high school, lots of people seemed to stop learning to play the piano, so we should exclude the piano which no one played, for it doesn’t have...

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