Question

a sum of money was invested at 6% per annual for 3 year and 9990 at 8% per annum simple intrest for 5 year yields the same and simple interest.find the sum invested​

Answer 1

Answer:

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.

Answer 2

Answer:

here is the answer in the attachment hope this is helpful