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 xx 14 xx 2)/(100)) + [((13900 - x) xx 11 xx 2)/(100)] = 3508`
`hArr 28x - 22x = 350800 - (13900 xx 22)`
`hArr 6x = 45000`
`hArr x = 7500`
So, sum invested in Scheme B = Rs. (13900 - 7500) = Rs. 6400
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