Sum for 2 years gives a compound interest of ₹ 3225 at rate of 15 % per annum amount is (In ?

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6.Interest

medium

The sum for $2$ years gives a compound interest of ₹ $3225$ at the rate of $15 \%$ per annum the amount is (In ₹)

$10000$

$20000$

$15000$

$32250$

Solution

(a) $C . I =3225, n =2, r =15 \%$

$\begin{aligned} C.I &= P \left[1+\frac{ r }{100}\right]^{ n }- P \\ 3225 &= P \left[1+\frac{15}{100}\right]^{2}- P \\ 3225 &=1.3225 P – P \\ \therefore & 0.3225 P =3225 \\ P &= Rs .10,000 \end{aligned}$

Standard 13

Quantitative Aptitude

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The sum for $2$ years gives a compound interest of ₹ $3225$ at the rate of $15 \%$ per annum the amount is (In ₹)

Solution

Similar Questions

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