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On what principal at the rate of 10%per annum, the difference betweenthe compound interests for 3 yearsand 2 years is * 121.00 ? |
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Answer» Answer: Let the sum be Rs.100 Computation of compound interest: Prinicpal =Rs.100 R=10% per ANNUM and n=2 years. Amount=Rs. ⎣ ⎢ ⎡
100×(1+ 100 10
) 2
⎦ ⎥ ⎤
=Rs. ⎣ ⎢ ⎡
100×( 2 11
) 2
⎦ ⎥ ⎤
=Rs.121 Computation of simple interest: Prinicpal =Rs.100 R=10% and TIME =2 years. ∴S.I.=Rs.( 100 100×10×2
)=Rs.20 Thus, difference in C.I. and S.I.=Rs.(21−20)=Re.1 Now, if difference between C.I and S.I. is Re.1, Then Sum =Rs.100 If difference between C.I. and S.I. is Rs.500, Then Sum =Rs.(100×500)=Rs.50000 |
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