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A sum was put at simple interest at a certain rate for 2 years Had it been put at 3 % higher rate, it whould have fetched Rs 300 more. Find the sum.

Solution:
Your problem `->` A sum was put at simple interest at a certain rate for 2 years Had it been put at 3 % higher rate, it whould have fetched Rs 300 more. Find the sum.


Let sum = Rs. `X` and original rate = `R` %

Then,
`(X * ( R + 3 ) * 2)/100 - (X * R * 2)/100 = 300`

`2 R X + 6 X - 2 R X = 300 * 100`

`6 X = 300 * 100`

`X = 5000`

The sum is Rs. `5000` .






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