Question

The simple interest on Rs.160 is Rs.40 and the number of years is equal to the rate of percent per annum. Find the rate percent

Answer 1

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Answer 2

Answer:

The rate is 1 2 .5 %

Step-by-step explanation:

Given : The simple interest on Rs.160 is Rs.40 and the number of years is equal to the rate of percent per annum.

To find :  Find the rate percent

Solution :

S I = 4 0 R S

P = 1 60 R S

R = T

Consider rate be x

x = T

Therefore ,

T = x also

S I = P * R * T / 1 0 0

= 4 0 / 1 = 160 * x * x / 1 0 0

2 x = 2 5

x = 2 5 / 2

x = 1 2 .5 %

Hence ,

The rate is 1 2 .5 %

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