Problems on Simple Interest

Q1. At which sum, the simple interest at the rate of 3¼ per annum will be Rs. 210 in 2½ years.
(a) 2311.25
(b) 2355.30
(c) 2584.60
(d) 2716.90

Q2. A sum of money amount to Rs. 4200 in 4 years and to Rs. 4680 in 7 years at simple interest. The rate of interest per annum is
(a) 3312
(b) 3560
(c) 3590
(d) 3626

Q3. How much simple interest will Rs. 3000 earn in 18 months at 5% per annum
(a) 225
(b) 250
(c) 262
(d) 310

Q4. A man deposited Rs. 300 for 2 years, Rs. 600 for 4 years and Rs. 1200 for 6 years. He received Rs. 1020 as the simple interest. The rate of interest per annum is
(a) 10 %
(b) 15 %
(c) 20 %
(d) 30 %

Q5. Simple interest on Rs. 600 for 4 years at 5.25% per annum is equal to the simple interest on 400 at 5% per annum for a certain period of time. The time period is ?
(a) 5 years
(b) 5.5 years
(c) 6.3 years
(d) 7.2 years

Q6. A borrows Rs. 800 at the rate of 12% per annum simple interest and B borrows Rs. 910 at the rate of 10% per annum simple interest. In how many years will their amount of debts be equal ?
(a) 8 years
(b) 13 years
(c) 19 years
(d) 22 years

Q7. Rs. 5000 becomes Rs. 6200 in 4 years at a certain rate of interest. If the rate becomes 1.5 times of itself, the amount of the same principal in 5 years will be
(a) 5536
(b) 5996
(c) 6886
(d) 7250

Q8. If the simple interest for 5 years be equal to 25% of the principal, it will be equal to the principal after
(a) 10 years
(b) 20 years
(c) 30 years
(d) 40 years

Q9. Hari took a loan at simple interest at 6% in the first year with an increase of 0.5% in each subsequent year. He paid Rs. 3375 as interest after 4 years. How much loan did he take ?
(a) 10950
(b) 11750
(c) 12500
(d) 12700

Q10. At what rate of simple interest a certain sum will be doubled in 14 years

(a) 7	1	years
	7

(b) 7	1	years
	9

(c) 8	1	years
	5

(d) 9	1	years
	3

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