| 1. | A certain scheme of investment in simple interest declares that it trebles the investment in 8 years. If you want to quadruple your money through that scheme, you have to invest it for ? | |
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11 years 6 months
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10 years 8 months
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10 years
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12 years
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Report Question| 2. | A certain sum doubles in 7 years at simple interest. The same sum under the same interest rate will become 4 times in how many years ? | |
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14
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28
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21
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10
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| 3. | A sum of money lent out at simple interest amounts to 720 after 2 years and to 1020 after a further period of 5 years. The sum is ? | |
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500
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600
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700
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710
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| 4. | The simple interest on 7,300 from 11 May, 1987 to 10 September, 1987 (both days included) at 5% per annum is ? | |
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123
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103
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200
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223
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| 5. | In how many years will a sum of money double itself at 6 and 1/4 % simple interest per annum ? | |
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24 years
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20 years
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16 years
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12 years
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| 6. | The simple interest on a sum after 4 years is 1/5 of the sum. The rate of interest per annum is ? | |
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4%
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5%
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6%
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8%
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| 7. | The difference between the simple interest received from two different banks on 500 for 2 years is 2.50. The difference between their (per annum) rate of interest is ? | |
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0.10%
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0.25%
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0.50%
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1.00%
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| 8. | The simple interest on 4,000 in 3 years at the rate of x% per annum equals the simple interest on 5,000 at the rate of 12% per annum in 2 years. The value of x is ? | |
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10%
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6%
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8%
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9%
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| 9. | With a given rate of simple interest, the ratio of principal and amount for a certain period of time is 4 : 5. After 3 years, with the same rate of interest, the ratio of the principal and amount becomes 5 : 7. The rate of interest is ? | |
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4%
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6%
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5%
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7%
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| 10. | In what time will the simple interest be 2/5 of the principal at 8 per cent per annum ? | |
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8 years
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7 years
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5 years
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6 years
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