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The ratio of number of boys to the numbe...

The ratio of number of boys to the number of girls in a school of 432 pupils is 5: 4. When some new boys and girls are admitted, the number of boys increase by 12 and the ratio of the boys to girls changes to 7:6. Find the number of new girls admitted.

A

12

B

14

C

24

D

20

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The correct Answer is:
C
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