(d) 42 5.In form two classes, the ratio of boys to girls is 6:7. If there are 18 boys in the
class, the girls are :
(a) 21
(b) 39
(c) 24
(d) 15
2
© Fiiraan

G : B = 6 : 7

Which is same as 6x : 7x (as we can’t reduce this further)

We’re given 6x = 18

X=3

Therefore, boys = 7x = 7(3) = 21

Total students = girls + and boys =

21+18 = 39

Therefore, total Students= 13(3)= 39

Option b. is the correct one.

Explanation:

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