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In a school , the number of boys and gir...

In a school , the number of boys and girls are in Ratio `5:3` Some new boys and girls took admission in the school in the ratio `5:7` Now , the total number of students in the school are 1200 and the ratio of total number of boys and girls become `7:5` Find the number of students initially .

A

700

B

720

C

900

D

960

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The correct Answer is:
D
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KIRAN PUBLICATION-RATIO AND PROPORTION -TYPE-IX
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