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Question 1
A sum of money lent on simple interest trebles itself in 15 years and 6 months. In how many years will it be doubled?
Question 2
A person invested some amount at the rate of 12% simple interest and the remaining at 10%. He received yearly an interest of Rs. 130. Had he interchanged the amounts invested, he would have received an interest of Rs. 134. How much money did he invest at different rates?
Question 3
Mr Verma deposited Rs. 15600 at the rate of 10% per annum at simple interest. After every second year, he adds his interest earnings to the principal. The total interest at the end of the 4th year is
Question 4
In how much time a sum of money becomes four times at 15 % simple interest?
Question 5
The sum which amounts to Rs. 364.80 in 8 years at 3.5% simple interest per annum is:
Question 6
A man invested Rs. 15860 in the name of his three sons A, B and C for 2, 3 and 4 years respectively. The interest from each investment at rate of 5% per annum are same. How much was invested in the name of C?
Question 7
If a sum of money at a certain rate of simple interest per year doubles in 5 years and at a different rate of simple interest per year becomes three times in 12 years, then the difference in the two rates of simple interest per year is
Question 8
Two equal sums were lent out at 9% and 7% S.I. respectively. The interests earned on the two loans add up to Rs.840 for 3 years. The total sum lent out in
Question 9
What equal installment of annual payment will discharge a debt which is due as Rs. 946 at the end of the 4 years at 5% per annum simple interest?
Question 10
An automobile franker claims to be lending money at simple interest, but he includes the interest every six months for calculating the principal. If he is charging an interest at the rate of 10%, the effective rate of interest becomes
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Dec 1CDS & Defence
