Question

At what rate of simple interest will some amount be doubled in 5 years​

Answer 1

Answer:

40% p.a.

Step-by-step explanation:

Let the of interest be x. And the amount be 100.

P×R×T/100=2(Principle)

100×x×5/100=200

5x=200

x=40

Hence, the rate of interest in which some amount be doubles in 5 years is 40% p.a.