Q1.
A sum at 9% per annum simple interest amounts to Rs. 2921 in 3 years. The sum is
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Q2.
At simple interest a sum of Rs. 64 becomes Rs. 83.20 in 2 years. What will Rs. 86 become in 4 years at the same rate?
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Q3.
Sangita obtained Rs. 8376 as simple interest on a certain sum at 8% per annum after 6 years. The sum invested by her was:
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Q4.
Purnima invests Rs. 10250 at 4% per annum simple interest to obtain a total amount of Rs. 12710. For how many years did she invest the sum?
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Q5.
At what rate percent per annum simple interest will a sum of money double itself in 20 years?
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Q6.
The sum of money that will give Rs. 1 as interest per day at 5% per annum simple interest is
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Q7.
The simple interest at x% per annum for x years will be Rs. x on a sum of:
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Q8.
A borrows Rs. 8000 at 12% p.a. simple interest and B borrows Rs. 9100 at 10% p.a. simple interest. In how many years will their amounts of debts be equal?
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Q9.
The compound interest on Rs. 8000 at 10% per annum for 3 years is:
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Q10.
A sum at compound interest doubles itself in 15 years. In how much time will it become 8 times?
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Q11.
The simple interest and compound interest on a certain sum compounded annually for 2 years are Rs. 900 and Rs. 954 respectively. The sum is:
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Q12.
At a certain rate of interest compounded annually, a sum amounts to Rs. 2420 in 2 years & Rs. 2662 in 3 years. The rate of interest per annum is:
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Q13.
On a certain sum, the difference between the simple interest and compound interest at 10% per annum is Rs. 20. The sum is:
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Q14.
A sum is invested at compound interest payable annually. The interests in two successive interest per annum is:
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Q15.
A tree increases annually by 1/8th of its height. By how much will it increase after 2 years if it stands today 64 cm high?
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Q16.
The present worth of Rs. 72900 due 2 years hence at 8% per annum is:
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