Question

At what rate percent will a sum of Rs. 3125 amount to Rs. 3645 in two years?​

Answer 1

Answer:

Here,Let rate=r% p.a

P=Rs.3125

and t=2 years

ATQ

We know that

p {( \frac{100 + r}{100} )}^{2} = ap(

100

100+r

)

2

=a

3125(100+r/100)^2=3645

(100+r/100)^2=3645/3125

(100+r/100)^2=729/625

(100+r/100)^2=(27/25)^2

100+r=27/25×100

r=108-100=8

Hence,Rate=8% p.a

Answer 2

Step-by-step explanation:

= rs 3125, p= rs 3125 , n= 2, r=? ... hence, the rate of interest is 8% per annum.