Question

The SI on a sum of money is 25% of the
principal
, and the rate per annum is equal to the number
of years. Find the rate percent.
(b) 6%
(c) 5%
(d) 8%
(a) 4.5%

Answer 1

Answer: 5%

Step-by-step explanation:

As given, simple interest(SI) is 25% of principal(P) and number of year(T) is equal to the rate(R) of percent.

Therefore

SI = 25  % of P

T = R

As we know ,

SI = P x R x T/100

So we have ,

25% of P = P x R x R/100

25/100 x P = PR^2/100

R^2 = 25

R = 5

Hence, Rate is 5 %

Answer 2

Answer:

(c) 5%

Step-by-step explanation:

PRT = 25P

100. 100

T=R

R²=25

=> R=5%