1.

2/ In class of 50 pupils the number of girls is 3/5 of the number of boys.Find the ratio between the number of boys and to the number of girls inthe class. 3;

Answer»

Let the number of Boys = Xnumber of Girls = 3X/5

X + 3X/5 = 508X/5 = 50X = 250/8 = 125/4

number of Boys = 125/4number of Girls = 125/4 X 3/5 = 75/4

ratio of Boys to girls = (125/4)/(75/4) = 5:3 (ANS)

5:3 is the ratio of boys to the girls



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