Question

at what rate percent per annual will rupees 62500 amount to 72900 in 2 years compounded annually​

Answer 1

Answer:

8% p.a.

Step-by-step explanation:

Amount (A) = Rs.72,900

Principal (P) = Rs.62,500

Time (T) = 2 years

Let the Rate be R.

A = P × (1 + R/100)ⁿ

=> 72900 = 62500 × (1 + R/100)²

=> 729/625 = (1 + R/100)²

=> (27/25)² = (1 + R/100)²

=> 27/25 = 1 + R/100

=> 27/25 - 1 = R/100

=> 2/25 = R/100

=> R = 8% p.a.

Answer 2

Answer:

8%p.a.

Step-by-step explanation:

Let, the rate be R..

Amount (A) =72900

Principal(P) =62500

Time(n) =2 years

A=P(1+R/100) ^n

72900=62500(1+R/100) ^2

72900/62500=(1+R/100) ^2

729/625=(1+R/100) ^2

(27/25) ^2=(1+R/100) ^2

27/25=1+R/100

27/25-1=R/100

2/25=R/100

R=8%p.a.