A

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Q. A sum of money amounts to Rs.6690 after 3 years and to Rs.10,035 after 6 years on compound interest.find the sum.

  • (A) 4360
  • (B) 4460
  • (C) 4560
  • (D) 4660
  • Correct Answer - Option(B)
  • Views: 25
  • Filed under category Math
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Explanation by: Admin

Let the sum be Rs.P.then
P(1+R/100)^3=6690…(i) and P(1+R/100)^6=10035…(ii)
On dividing,we get (1+R/100)^3=10025/6690=3/2.
Substituting this value in (i),we get:
P*(3/2)=6690 or P=(6690*2/3)=4460
Hence,the sum is rs.4460.

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