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Among 132 examines of a certain school...

Among 132 examines of a certain school , the ratio of successful and unsuccessful students is `9:2` .Had 4 more students passed , then the ratio of successful to unsuccessful students will be :

A

`14:3`

B

`14:5`

C

`28:3`

D

`28:5`

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