Question

In how much time will simple interest be one fourth of the principal at the rate of 10% per annum??​

Answer 1

Answer:

T=5 Years

Step-by-step explanation:

Given:

Simple Interest = (1/4) of Principal

Number of years and the rate = T

Formula used:

S.I = PRT/100

Where, P = Principal, T = Time, R = Rate

Calculation:

Simple Interest = (1/4) of Principal

S.I = (1/4)P

(S.I)/(P) = 1/4

Number of years and the rate = T

S.I = PRT/100

⇒ (1/4)P = (P × T × T)/100

⇒ 1/4 = (1 × T × T)/100

⇒ 100/4 = T2

⇒ T2 = 25

⇒ T = 5 years

∴ The number of years is 5 years.

Answer 2

Answer:

time = 2.5 yrs

Step-by-step explanation:

S.I. =(P×R×T)/100

LET PRINCIPAL BE X,

x/4=(x×10×T)/100

25x = 10x×T

T = 2.5