Q22 of 52 Page 112

Let us write by calculating at what rate of compound interest per annum, the amount on ₹10,000 for 2 years is ₹12100.

Let the rate of compound interest per annum be r% per annum.


We know that the amount at rate of r% compound interest per annum for 2 years


By the condition,









∴ r = 10


∴ Rate of interest per annum is 10%.


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