# If Rs.3750 amount to Rs.4260 in 3 years at simple interest.Find:i)the rate of interestii)the amount of Rs.7500 in 11/2 years at the same rate of interest.it's simple interest fast plzzzzzz

1
by singhsumita40
8th
CBSE board?
you tell urs
I'm in 9th and CBSE board.
ok i am in icse board

2014-11-17T14:00:52+05:30

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If Rs.3750 amount to Rs.4260 in 3 years at simple interest.Find:i)the rate of interest
ii)the amount of Rs.7500 in 11/2 years at the same rate of interest.

Rate  = R,         P = Rs 3,750     t = 3 years

Simple Interest = Rs 4,260 - Rs 3, 750 = Rs 510

P R t = 3, 750 * R * 3 = 510
R = 170/3750 = 4.53 %
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Simple interest on Rs 7, 500 for 11/2 years  at  R = 4.53%
= Rs 1, 868.625

Total sum = Rs 9, 368.625