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. Choices.
A) 4360  B) 4460  C) 4580  D) 4690  E) 5480
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)= 
<gadget id="calculator">(6690*2/3)</gadget>
<output>4_460</output>
4460
Hence,the sum is rs.4460. Answer : 4460
<result>B</result>
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.