a person invested Rupees 1500 at a certain rate of simple interest and 2000 rupees at a rate 1% higher his whole income for 3 years is 480 rupees he invested 1500 rupees at the rate of
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100×Interest
Rate=———————————
Time×Investment
100×480
=————————
3×1500
480
=———— [By cancelling 1500 & 100]
3×15
160
=——— [By cancelling 480 & 3]
15
=10.66%
=10%
The answer is 10%
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