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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

25 years

B

20 years

C

15 years

D

10 years

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CHAMPION PUBLICATION-2011 TIER-II PAPER(23)-EXERCISE
  1. A man driving at 3/4th of his original speed reaches his destination 2...

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  2. A motor boat covers 25 km upstream and 39 km downstream in 8 hours whi...

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

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  4. A person has left an amount of Rs. 120000 to be divided between his tw...

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  5. If a^2 + b^2 + c^2 = 2(a -b -c)- 3,then the value of (a- b + c) is य...

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  6. If x^2+3x+2=0, then the vlaue of x^3+1/x^3 is यदि x^2+3x+2=0, तो x^3...

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  7. If x^a.x^b.x^c=1 then the value of a^3+b^3+c^3 is यदि x^a.x^b.x^c=1,...

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  8. Base of a right pyramid is a square, length of diagonal of the base is...

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  9. The height of a right circular cone and the radius of its circular bas...

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  10. The ratio of radii of two right circular cylinders is 2 : 3 and their ...

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  11. A solid cylinder has total surface area of 462 sq. cm. Its curved surf...

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  12. A cylinder and a cone have equal radii of their bases and equal height...

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  13. A solid is hemispherical at the bottom and conical above. If the surfa...

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  14. Base of a right prism is an equilateral triangle of side 6 cm. If the ...

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  15. If a+1/a+2=0, then the value of a^37-1/a^100 is यदि a+1/a+2=0, तो ...

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  16. The value of k for which the graph of (k- 1)x+ y-2= 0 and (2-k)x-3y+ ...

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  17. The length of a shadow of a vertical tower is 1/sqrt3 times of its hei...

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  18. The graph of x+ 2y= 3 and 3x-2y = 1 meet the Y-axis at two points havi...

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  19. If x+1/(16x)=1, then the value of 64x^3+1/(64x^3) is यदि x+1/(16x)=...

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  20. If a,b, are three non-zero real numbers such that a + b + c =0, and b ...

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