What will be the compound interest on a sum ( | vedclass

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Question

C.I. after 3 years $=25000\left[\left(1+\frac{12}{100}\right)^{3}-1\right]=25000\left[\left(\frac{28}{25}\right)^{3}-1\right]$

$=\frac{25000}{25^{3

Vedclass · Accepted Answer

$10123.20$

Vedclass · Answer

C.I. after 3 years $=25000\left[\left(1+\frac{12}{100}ight)^{3}-1ight]=25000\left[\left(\frac{28}{25}ight)^{3}-1ight]$

$=\frac{25000}{25^{3}}\left(28^{3}-25^{3}ight)=\frac{40}{25}(28-25)\left(28^{2}+25^{2}+28 	imes 25ight)$

$=\frac{40 	imes 3}{25}(784+625+700)=\frac{24}{5} 	imes 2109$

$=4.8 	imes 2109=₹ 10123.20$

What will be the compound interest on a sum (In ₹) of ₹ $25000$ after $3$ years at the rate of $12 \%$ per annum?

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