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In a colony, the average age of the boys...

In a colony, the average age of the boys is `14` years and the average age of the girls is `17` years. If the average age of the children in the colony is `15` years, find the ratio of number of boys to that of girls.

A

`1 : 2`

B

`2 : 1`

C

`2 : 3`

D

`3 : 2`

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The correct Answer is:
A
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