Subject :IMO Class : Class 7

The ratio of the number of men to the number of women at a concert is 5 : 3. The ratio of the number of women to the number of children is 2 : 5. Find the ratio of the number of children to the total number of women and men in the concert.

A15 : 16

B16 : 15

C13 : 12

D12 : 13