Question

the simple interest on a certain of money for 5 years at 10% per annum is rs 196 less than the simple interest on the same sum for 4 years at 16%per annum. find the sum

Answer 1

Interest = PRT

.

Given that interest for 5 years at 10% is Rs 196 less than 4 years at 16%

⇒ P(0.16(4) - P(0.1)(5) = 196

.

Solve for P:

P(0.16(4) - P(0.1)(5) = 196

0.64P - 0.5P = 196

0.14P = 196

P = Rs 1400

.

Answer: The principal amount is Rs 1400

Answer 2

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Refer to the attachment.

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