Question

A sum becomes five times in 32 years at a simple interest, then the rate of interest is

Answer 1

$\huge\red{Answer\: is}$

Let the Sum be x
so Amount = 5x
T = 32 years
R = ? let's R

Now. SI. = A - P. = 5x - x. = 4x

Rate of interest = SI x 100 /P x T

$= \frac{4x \times 100}{x \times 32} \\ = \frac{100}{8} \\ = 12.5\%$
$<marquee>Hope it helps you$