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A manufacturer reckons that the value of a machine, which costs him Rs. 15625, will depreciate each year by 20%. Find the estimated value at the end of 5 years.

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RD SHARMA ENGLISH-GEOMETRIC PROGRESSIONS-All Questions
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  8. Show that each of one of the following progression is a G.P. Also, fin...

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  10. Show that each of one of the following progression is a G.P. Also, ...

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  11. Show that the sequence defined by an=2/(3^n),\ n in N\ is a G.P.

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  12. Find: the ninth term of the G.P. 1,4,16,64,………

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  13. Find: the 10th term of the G.P. -3/4,1/2,-1/3,2/9, ....

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  14. Find: the 8th term of the G.P. 0. 3 , 0.06 , 0.012 ,

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  15. Find: the 12th term of the G.P. 1/(a^3x^3),\ a x ,\ a^5x^5,\ dot

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  16. Find: n th term of the G.P. sqrt(3),1/(sqrt(3)),1/(3sqrt(3)),

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  17. Find: the 10th term of the G.P. sqrt(2),1/(sqrt(2)),1/(2sqrt(2)),

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  18. Find the 4th term from the end of the G.P. 2/(27),2/9,2/3, ,, , , ,...

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  19. Which term of the progression 0.004,0.02,0.1,… is 12.5?

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  20. Which term of the G.P.: sqrt(2),1/(sqrt(2)),1/(2sqrt(2)),1/(4sqrt(2)),...

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