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At the beginning of year 2011, a man had...

At the beginning of year 2011, a man had 22,000 in his bank account. He saved some money by the end of this year and deposited it in the bank. The bank pays 10% per annum compound interest and at the end of year 2012 he had 39,820 in his bank account. Find, what amount of money he had saved and deposited in his account at the end of year 2011.

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The correct Answer is:
` 12,000`
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ICSE-CHAPTER REVISION (STAGE 2) -COMPOUND INTEREST
  1. Amit borrowed 20,000 at 12% per annum compound interest. If he pays 40...

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  2. Garima borrowed 40,000 at 10% p.a. simple interest. She immediately in...

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  3. At the beginning of year 2011, a man had 22,000 in his bank account. H...

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  4. A sum of 16,000, invested at simple interest, amounts to 22,400 in 4 y...

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  5. If the amounts of two consecutive years on a sum of money are in the r...

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  6. The cost of a car, purchased 2 years ago, depreciates at the rate of 2...

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  7. The cost of a car, purchased 2 years ago, depreciates at the rate of 2...

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  8. If x^(2) + y^(2) = 37 and xy = 6, find x+y

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  9. If x^(2) + y^(2) =37 and xy = 6 : find x-y

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  10. If x^(2) + y^(2) = 37 and xy = 6, find x^(2) - y^(2)

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  11. If 3a+(1)/(3a) = 2sqrt3 , evaluate: 3a- (1)/(3a)

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  12. If 3a+(1)/(3a) = 2sqrt3 , evaluate: 9a^(2) +(1)/( 9a^(2))

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  13. If 3a+(1)/(3a) = 2sqrt3 , evaluate: 81 a^(4) + (1)/(81a^(4))

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  14. Expand : (2x- y + 2)^(3)

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  15. Expand : (x-2y + 6)( x-2y -6) .

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  16. Expand (2a -4b +7) (2a+ 4b+7)

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  17. If a+ b =1 and a-b =7, find : a^(2) +b^(2)

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  18. If a+ b =1 and a-b =7, find : ab

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  19. If x ne 0 and 3x +(1)/(3x)= 8, find the value of :27 x^(3) + ( 1)/(...

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  20. If x-y +z = 5 and x^(2) +y^(2) +z^(2) = 49, find the value of : zx...

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