Question

At what rate of compound interest p.a. will
1250 amount to 1800 in two years, if interest
is compounded annually?​

Answer 1

Answer: Step-by-step explanation:

Here is your answer...

Given is Time = 2 years

Amount=₹1800

Principal = ₹1250

Rate = ?

The formula to calculate amount is

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

=1800 = 1250 × (1+ R/100)^2

=1800/1250 = (1+ R/100)^2

=√(36/25) = 1+ R/100

=6/5 - 1 = R/100

=1/5 × 100 = R

=20 = R

Therefore, the rate is 20%.

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Answer 2

Given:

Amount=1800

Principal = 1250

Time = 2 years

Rate = ?

Formula:

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

1800 = 1250 x (1+ R/100)^2

1800/1250 = (1+ R/100)^2

V(36/25) = 1+ R/100

6/5 - 1 = R/100

1/5 x 100 =R

20 = R

R = 20%

Therefore,

Rate = 20% Ans