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Practice Simple and compound interest Questions and Answers

The simple interest received on a sum is 25/36 of the sum. The number of years is equal to the annual rate of interest. What is the annual rate of interest...
Sunil invested Rs. ‘4x’ in scheme ‘A’ offering simple interest of 25% p.a. and reinvested the interest earned from scheme ‘A’ at the end of 4 y...
Sunil invested Rs. ‘5x’ in scheme ‘A’ offering simple interest of 25% p.a. and reinvested the interest earned from scheme ‘A’ at the end of 4 y...
Mr. P invested Rs. ‘4x’ in scheme ‘A’ offering simple interest of 25% p.a. and reinvested the interest earned from scheme ‘A’ at the end of 4 y...
Mr. P invested Rs. ‘2x’ in scheme ‘A’ offering simple interest of 20% p.a. and reinvested the interest earned from scheme ‘A’ at the end of 4 y...
Mr. P invested Rs. ‘8x’ in scheme ‘A’ offering simple interest of 25% p.a. and reinvested the interest earned from scheme ‘A’ at the end of 4 y...
Mr. P invested Rs. ‘10x’ in scheme ‘A’ offering simple interest of 20% p.a. and reinvested the interest earned from scheme ‘A’ at the end of 4 ...
A sum on simple interest becomes 9/4 times of itself in five years, find the rate of interest.
The compound interest (compounded annually) on Rs 8200 for 2 years at R% p.a is Rs 1722. Had the rate of interest been (R+10)% p.a what would have been the...
Sam invested a certain sum in scheme A for 5 years and in scheme B for 3 years, a sum which was double of that invested in scheme A. Both the schemes offer...
A man invested certain sum at simple interest of r% p.a. such that it amounts to 130% of itself in 3 years. Find the interest earned when Rs. 3000 is inves...
A man invested certain sum at simple interest of r% p.a. such that it amounts to 140% of itself in 2 years. Find the interest earned when Rs. 3200 is inves...
A man invested certain sum at simple interest of r% p.a. such that it amounts to 150% of itself in 5 years. Find the interest earned when Rs. 2200 is inves...
A man invested certain sum at simple interest of r% p.a. such that it amounts to 160% of itself in 6 years. Find the interest earned when Rs. 2400 is inves...
A man invested certain sum at simple interest of r% p.a. such that it amounts to 170% of itself in 7 years. Find the interest earned when Rs. 2800 is inves...
A man invested certain sum at simple interest of r% p.a. such that it amounts to 122% of itself in 5 years. Find the interest earned when Rs. 3000 is inves...
A man invested certain sum at simple interest of r% p.a. such that it amounts to 124% of itself in 10 years. Find the interest earned when Rs. 10000 is inv...
A borrowed Rs. 7000 from B for his business. How much amount A will return to B at the end of 30 months such that the sum was borrowed at simple interest o...
A borrowed Rs. 7500 from B for his business. How much amount A will return to B at the end of 25 months such that the sum was borrowed at simple interest o...
A borrowed Rs. 5500 from B for his business. How much amount A will return to B at the end of 21 months such that the sum was borrowed at simple interest o...
A borrowed Rs. 9500 from B for his business. How much amount A will return to B at the end of 24 months such that the sum was borrowed at simple interest o...
A borrowed Rs. 9500 from B for his business. How much amount A will return to B at the end of 36 months such that the sum was borrowed at simple interest o...
A borrowed Rs. 6500 from B for his business. How much amount A will return to B at the end of 48 months such that the sum was borrowed at simple interest o...
A borrowed Rs. 5200 from B for his business. How much amount A will return to B at the end of 15 months such that the sum was borrowed at simple interest o...
Difference between simple interest and compound interest at the rate of 10% p.a. for 2 years is Rs 480, find the sum.
Rs. 8,000 is invested in scheme ‘A’ offering simple interest of 18% p.a. and Rs. 6,000 in scheme ‘B’ offering simple interest of 7% p.a. What is th...
Rs. 9,000 is invested in scheme ‘A’ offering simple interest of 20% p.a. and Rs. 6,500 in scheme ‘B’ offering simple interest of 8% p.a. What is th...
Rs. 5,000 is invested in scheme ‘A’ offering simple interest of 16% p.a. and Rs. 6,600 in scheme ‘B’ offering simple interest of 9% p.a. What is th...
Rs. 5,500 is invested in scheme ‘A’ offering simple interest of 15% p.a. and Rs. 8,000 in scheme ‘B’ offering simple interest of 5% p.a. What is th...
Rs. 6,500 is invested in scheme ‘A’ offering simple interest of 14% p.a. and Rs. 9220 in scheme ‘B’ offering simple interest of 5% p.a. What is the...
Rs. 6,600 is invested in scheme ‘A’ offering simple interest of 13% p.a. and Rs. 2500 in scheme ‘B’ offering simple interest of 4% p.a. What is the...
If the ratio of the sum invested and simple interest received after 1 year is 20:9 respectively, then find the rate of interest.
If the ratio of the sum invested and simple interest received after 1 year is 25:7 respectively, then find the rate of interest.
If the ratio of the sum invested and simple interest received after 1 year is 20:7 respectively, then find the rate of interest.
If the ratio of the sum invested and simple interest received after 1 year is 25:11 respectively, then find the rate of interest.
If the ratio of the sum invested and simple interest received after 1 year is 20:13 respectively, then find the rate of interest.
If the ratio of the sum invested and simple interest received after 1 year is 25:6 respectively, then find the rate of interest.
If the ratio of the sum invested and simple interest received after 1 year is 20:11 respectively, then find the rate of interest.
If the ratio of the sum invested and simple interest received after 1 year is 25:14 respectively, then find the rate of interest.
If the ratio of the sum invested and simple interest received after 1 year is 25:16 respectively, then find the rate of interest.

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