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12-06-2018
Mathematics

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There are 400 students in a school. Fifty five percent are girls. How many boys are there?

There are 400 students in a school Fifty five percent are girls How many boys are there class=

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mkryukova19 mkryukova19

12-06-2018

1) 55% is girls, then
100-55=45% is boys.

2) 45%=0.45 or 2) 400 ----100%
3)400*0.45= 180 boys x -----45% x=400*45/100=180 boys

Answer is 180 boys.

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