Question

Rate% p.a.
Number of years
Principal
1 * 10000
12%
2​

Answer 1

Find the compound interest on Rs. 10000 for 1½ years at 20% per annum, interest being payable half-yearly.

Solution: We know, R= 20% per annum

or, 10% per half year.

T= 1½ years = 3 half years

Original Principal (P) = Rs. 10000

I for the first half-year =

Rs. \dfrac{10000 \times 10 \times 1}{100} = Rs. 1000

P for the second half-year = Rs. 10000+1000= Rs. 11000

I for the second half-year =

Rs.\dfrac{11000 \times 10 \times 1}{100} = Rs. 1100

Amount at the end of the second half-year = Rs. 11000 + Rs. 1100 = Rs. 12100

P for the third half year= Rs. 12100

I for the third half-year =

Rs. \dfrac{12100 \times 10 \times 1}{100} = Rs. 1210

Amount at the end of third half-year = Rs. 12100 + Rs. 1210 = Rs. 13310

\therefore C.I. = Rs. 13310 – Rs. 10000 = Rs. 3310

Answer 2

Answer:

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Step-by-step explanation:

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