Question

Compound interest on a certain sum of money at 5% per annum for two years is 246 Rs . Calculate simple interest on the same sum for 3 years at 6% per annum

Answer 1

Given:-

Rate = 5%

Time = 2 years

C.I. = Rs 246

To find :-

S.I. = ?

Solution :-

Formula $\implies$

$C.I. = P[(\dfrac{r}{100})^n - 1]$

Put the given values--

$246 = P[(\dfrac{5}{100})^2 - 1 ]$

$246 = P[ (\dfrac{1}{20})^2 - 1]$

$246 = P[ (\dfrac{21}{20})^2 - 1 ]$

$246 = P[ \dfrac{441-400}{400}]$

$246 = P[\dfrac{41}{400}]$

$\dfrac{246 \times 400}{41} = P$

P = Rs2400

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S.I. = ?

Time = 3 years

Rate = 6%

Formula to find S.I.

$S.I. = \dfrac{P \times R \times T}{100}$

Put the given values :-

$\dfrac{2400 \times 6 \times 3}{100}$

$Rs~ 432$

Answer => S.I. = Rs 432

Answer 2

Answer:

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Step-by-step explanation: