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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

₹520

B

₹550

C

₹500

D

₹515

Text Solution

Verified by Experts

The correct Answer is:
C
2 वर्षों का समतुल्य ब्याज दर `= 10 + 10 +(10 xx 10)/(100)`
`=21 %`
अर्थात् P का 21% = 525
` therefore 5= (525 )/(21 ) xx 100`
`=₹2,500`
` therefore ` 2 वर्षों का साधारण ब्याज `= ( 2500 xx 4 xx 5)/(100)`
`= ₹500`
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