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...there are 546 girls, that is 52% of the total number of pupils in the school. How many pupils are there in school? Sol...

1.a) Let $x be the sum of money and y be the number of pupils . x=18y-14 (x+14)/18=y------1 x=17y+4 (x-4)/17=y------2 Sub. 1 into...

...70 - 20 - 10 = 60 So there are 70 + 30 + 10 + 20 + 40 + 50 + 60 = 280 pupils have read at least one of magazines.

It is impossible for a P.3 pupil to solve the problem with equation. （一位小三學生沒法以方程式去解這問題...

... , fish and sheshells is 15200 cm³ . (4) 56 out of 100 pupils like swimming. It means that out of every 100 pupils ...

a) 1500 x 80% x (1-20%) =1500 x 0.8 x 0.8 =1200 x 0.8 =960 960 pupils travelled by bus yesterday. b) 1500-960 =540 540pupils did not travel by bus yesterday

...)+n(A∩ B∩ C)=280 (ii) Consider how many pupils only read A and B Number=n(A∩ B)-n(A...

...63-16﹞ =﹝458﹞﹝47﹞ = 21526 幫我轉反做中文 2.There are 40 pupils in P.6A and there are 10 girls more than boys...