The difference between the CI and SI on Rs $10, 000$ for $2$ years is Rs $25$ . What will be the rate of interest?

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Solution

We know that difference between CI and SI for $2$ years is $\frac{P R^{2}}{10000}$
$\Rightarrow 25 = \frac{10000 R^{2}}{10000}$
$\Rightarrow R^{2} = 25$
$\Rightarrow R = \pm 5$ ignoring negative value
$∴ R = 5$
Rate of interest is $5 %$ p.a.

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The difference between the CI and SI on Rs10,000 for 2 years is Rs25. What will be the rate of interest?

We know that difference between CI and SI for 2 years is PR210000⇒25=10000R210000⇒R2=25⇒R=±5 ignoring negative value∴R=5Rate of interest is 5% p.a.

The difference between the CI and SI on Rs $10, 000$ for $2$ years is Rs $25$ . What will be the rate of interest?

We know that difference between CI and SI for $2$ years is $\frac{P R^{2}}{10000}$
$\Rightarrow 25 = \frac{10000 R^{2}}{10000}$
$\Rightarrow R^{2} = 25$
$\Rightarrow R = \pm 5$ ignoring negative value
$∴ R = 5$
Rate of interest is $5 %$ p.a.