Question

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

Answer 1

Answer:

Hey!!!

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Here,Let rate=r% p.a

P=Rs.3125

and t=2 years

ATQ

We know that

p {( \frac{100 + r}{100} )}^{2} = ap(100100+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

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Hope it helps!!! :)