Question

certain sum of money amounts to 7 /4 of itself in 3 years find the rate percent per annum​

Answer 1

Answer:

Let Principal be P.

Amount = 7P/4

S.I = Amount-Principal

= 7P/4 - P

= (7P-4P)/4

= 3P/4

Time = 3 years

S.I = P*R*T/100

3P/4 = 3PR/100

3/4 = 3R/100

0.75 = 3R/100

75 = 3R

Rate is 25% per annum.

I Hope This Helps.