Question

The simple interest on a sum of money for 12 years is Rs 3756. If the principal becomes 4 times after 18 years, then what will be the total interest (in Rs) obtained for 24 years?  ​

Answer 1

$Given \: simple \: interest \: on \: a \: sum \:of$

$money \: for \: 12 \: years = Rs \: 3756$

$\blue {i) Simple \: Interest\: for \: 1\: year}\\ = \frac{3756}{12}$

$= Rs \: 313$

$\red{ Total \: interest \: obtained \: for}\\\red{ 24 \: years } \\= 24 \times Rs \: 313 \\= Rs \: 7512$

Therefore.,

$\red{ Total \: interest \: obtained \: for}\\\red{ 24 \: years }\green { = Rs \: 7512}$

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