Question

At what rate amount of the sum double itself in 2 years​

Answer 1

Step-by-step explanation:

Let the sum of money be x

Time-2 yrs

Amount-2x (It says double itself)

Amount-S.I+Principle

Therefore,2x=S.I+x

2x-x=S.I

x=S.I

Hence rate=S.I×100/p×T

x×100/x×2=rate

therefore,rate=50%p.a

HOPE IT HELPS....