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mrs. reeta deposited a sum of …

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mrs. reeta deposited a sum of 8400 in a bank. after 2 years, she withdrew 5200 and at the end of 4 years, she received 5288. find the rate of simple interest
  • 1 answers

Gaurav Seth 5 years, 2 months ago

Mrs. Reeta deposited a sum of Rs.8400 in a bank for 4 years at the simple interest.

After 2 years the interest for this prinicipal sum is 

Thus, total amount after 2 years is

She withdrew Rs.5200 from.

Thus the remaining sum is

 

Thus, total amount after 4 years is

She received Rs.5288.

Therefore,

Solving this quadratic equation,

The rate of interest can't be negative.

Thus, the rate of simple interest isper annum.

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