#### Find the compound interest on ₹ 3125 for 3 years if the rates of interest for the first, second and third year are respectively 4%, 5% and 6% per annum.

**Solution:**

It is given that

Principal (P) = ₹ 3125

Rate of interest for continuous = 4%, 5% and 6%

Period (n) = 3 years

We know that

Amount = P (1 + r/100)^{n}

Substituting the values

= 3125 (1 + 4/100) (1 + 5/100) (1 + 6/100)

By further calculation

= 3125 × 26/25 × 21/50 × 53/50

= ₹ 3617.25

Here

CI = A – P

Substituting the values

= 3617.25 – 3125

= ₹ 492.25

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