#### In what time will ₹ 15625 amount to ₹ 17576 at 4% per annum compound interest?

**Solution:**

It is given that

Amount (A) = ₹ 17576

Principal (P) = ₹ 15625

Rate = 4% p.a.

Consider n years as the period

We know that

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

Substituting the values

17576/15625 = (1 + 4/100)^{n}

By further calculation

(26/25)^{3} = (26/25)^{n}

So we get

n = 3

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