Question

If the interest on 3000 rupees is 600 rupees at a certain rate for a certain number of years.,what would the interest be on 1500 rupees under the same conditions?

Answer 1

Interest would be Rs.300.

Step-by-step explanation:

Since we have given that

Principal = Rs. 3000

Interest = Rs. 600

So, Simple interest formula would be

$600=\dfrac{3000\times R\times T}{100}\\\\600\times 100=3000\times RT\\\\\dfrac{600\times 100}{3000}=RT\\\\20=RT$

If principal amount = Rs. 1500

Then, interest would be

$Interest=\dfrac{P\times R\times T}{100}\\\\Interest=\dfrac{1500\times 20}{100}\\\\Interest=Rs.\ 300$

Hence, Interest would be Rs.300.

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