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The compound interest on a certain sum f...

The compound interest on a certain sum for 2 years at `10%` per annum is `Rs. 525`. The simple interest on the same sum for double the time at half the rate per cent per annum is:

A

Rs. 401

B

Rs. 500

C

Rs. 600

D

Rs. 800

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The correct Answer is:
B
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