Question
Mr. Thomas invested an amount of Rs. 13,900 divided in two different schemes A and B at the simple interest rate of 14% p.a. and 11% p.a. respectively. If the total amount of simple interest earned in 2 years be Rs. 3508, what was the amount invested in Scheme B?
Answer: Option A
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Let the sum invested in Scheme A be Rs. x and that in Scheme B be Rs. (13900 - x).
Then, ( x X 14 X 2 ) + (13900 - x) X 11 X 2 = 3508
100 100
28x - 22x = 350800 - (13900 X 22)
6x = 45000
x = 7500.
So, sum invested in Scheme B = Rs. (13900 - 7500) = Rs. 6400.
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