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A sum of money placed at compound intere...

A sum of money placed at compound interest doubles itself in 5 years. It will amount to eight times itself at the same rate of interest in-
एक धनसशि चक्रवृद्धि ब्याज पर 5 वर्ष में दुगुनी हो जाती है। ब्याज की समान दर पर वह कितने वर्षो में 8 गुना हो जाएगी?

A

15 years

B

20 years

C

12 years

D

10 years

Text Solution

Verified by Experts

The correct Answer is:
A
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A sum of money, deposited at some rate percent per annum of compound interest, doubles itself in 4 years. In how many years will it become 16 times of itself at the same rate ? चक्रवृद्धि व्याज की किसी वार्षिक प्रतिशत दर से कोई धनराशि 4 वर्ष में स्वयं की दोगुनी हो जाती है। उसी दर से, कितने वर्ष में यह स्वयं की 16 गुनी होगी?

UPKAR PUBLICATION -COMPOUND INTEREST-QUESTION BANK
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  2. A sum of Rs 12,000 deposited at compound interest becomes double af...

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  3. A sum of money placed at compound interest doubles itself in 5 years. ...

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  4. A sum is invested at compound interest payable annually. The interest ...

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  5. The difference between compound interest and simple interest at the sa...

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  6. The compound interest on a certain sum of money for 2 years at 10% per...

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  7. A sum of money becomes Rs. 6690 after three years and Rs. 10035 after ...

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  8. Rs. 1600 at 10% per annum compound interest compounded half yearly amo...

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  9. The difference between simple interest and compound interest on a sum ...

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  10. Divide Rs. 3903 between A and B, so that A’s share at the end of 7 yea...

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  11. A sum of money put out at compound interest amounts in 2 years to Rs. ...

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  12. Find what is that first year in which a sum of money will become more ...

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  13. Find the compound interest on Rs 8000 for 1 (1/2) years at 10% per ann...

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  14. If the interest of a certain sum for the first year at 8% p.a. compoun...

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  15. If the simple interest on certain sum of money be Rs. 40 for 2 years a...

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  16. Neeraj saves Rs. 400 at the end of each year and lends this saving at ...

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  17. If the compound interest of a certain sum of money for 2 years at 5% p...

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  18. What will be the approximate compound interest on Rs. 10105 at 10% p.a...

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  19. The compound interest on a certain sum for two successive years are Rs...

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  20. The cash price of a refrigerator is Rs. 7044. A customer paid Rs. 2000...

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