Simple Interest-Data Intensity 1 :: Discussion


8.A lent Rs. 5000 to B for 2 years and Rs. 3000 to C for 4 years on simple interest at the same rate of interest and received Rs. 2200 in all from both of them as interest. The rate of interest per annum is?
A.5%
B.7%
C.7⁡〖1/8〗
D.10%
Answer:  Option  D
Explanation:

Let the rate be R% p.a.

Then, 5000 x R x 2 + 3000 x R x 4 = 2200.
100 100

 100R + 120R = 2200

 R = 2200 = 10.
220

 Rate = 10%.

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Published by:Michael Daani

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