Question

a certain short amount to 1500 in 3years and 1800 in 4 years find the rate of inter in c.i?

Answer 1

Hi friend
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Your answer
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A sum amounts to Rs 1500 in 3 years and to Rs 1800 on 4 years.

Rate of interest = r = ?

Now,
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Interest of third year = Rs (1800 - 1500) = Rs 300

Then,
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(1500 × r × 1)/100 = 300

=> r = (300 × 100)/1500

=> r = 20%

HOPE IT HELPS