Question

A sum if money will become 5/2 times the principal at 10% per annum S.I in ____ years

Answer 1

Answer = 15

Explanation:

SI = PNR/100
and A = P + SI

Here,
A = 5P/2
Therefore, SI = 5P/2 - P = 3P/2

3P/2 = PN*10/100
30/2 = N
15 = N