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By what number must the given number be ...

By what number must the given number be multiplied to increase the number by 25%.
किसी संख्या में 25% की वृद्धि करने के लिए उस संख्या को किस संख्या से गुणा करना चाहिए ?

A

a)3

B

b)`2/5`

C

c)`5/4`

D

d)`3/4`

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