Question

At what rate percent will Rs 800 amount to Rs 926.10 in 3 years?​

Answer 1

Whenever the CI is calculated semi-annually Then, The Rate is halved and time is doubled

Let the time be n years

So, R=10/2 Amount = Rs. 926.10 Principal = Rs. 800

= 5%

T= 2 x n = 2n years

A=P(1 +R/200)^2n

926.10 = 800(1+10/200)^2n

926.10/800 = (21/20)^2n

(21/20)^3 = (21/20)^2n

Here, 2n = 3

n =3/2

n = 1.5 years

Answer 2

Answer:

principle = 800 rupees

amount= 926.10 rupees

time= 3years

rate of interest = R

formula = P× R/100×T=A

= 800×R/100×3=926.10

R = 38.55

therefore, the rate of interest is 35.35%

Step-by-step explanation:

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