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What is the interest rate per annum, if ...

What is the interest rate per annum, if a sum of money invested at compound interest amount to Rs. 2400 in 3 years and in 4 years to Rs. 2,520?

A

A. 6.5%

B

B. 5%

C

187

D

D. 9%

Text Solution

Verified by Experts

The correct Answer is:
A

Number of boys =910 and
Number of girls =650

Note Number in bold represents Boys
Required number =(70+65)135`
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