Question

At what rate per cent per annum will * 1620 amount to 1962 in 3 years 2 months?​

Answer 1

Answer:Principle = rs 1620

Amount = rs 1962

So, S.I = amount - principle

= 1962 - 1620

= 342

Time = 3 yrs 2 months

= 2 months

= 2/12 yrs

= 1/6 yrs

So! Total time = 3 1/6 yrs = 19/6 yrs

Rate of interest per annum = S.I x 100 /P x T

= 342 x 100 x 6/ 1620 x 19

= 20/3 %

Step-by-step explanation:

Answer 2

Step-by-step explanation:

1962-1620=342

time=3+2/12

=3+1/6

rate of interest=S.I* 100*/p*T

=342*100/1620*19/6

=20/3%