M4maths Previous Puzzles

23 Jul 2019 Simple Interest

A sum of Rs. 12,500 amounts to Rs. 25,000 in 10 years at the rate of simple interest. What is the rate of interest?

OPtion

1) 8
2) 12
3) 11
4) 6
5) 10
6) 18
7) 20
8) 9
9) 7
10) None of these

Solution

SI = 25000 - 12500 = 12500

SI = PRT/100

So R = 12500*100/(12500*10) = 10%

Correct Option: 5 Best Solution (0)