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Question

Ashin invested an amount of Rs. 13,900 divided into 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 (in rupees)?


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Solution

Let the sum invested in Scheme A be Rs. x and that in Scheme B be Rs. (13900 - x).

Then

14×x×2100 + (13900x)×11×2100 = 3508

28x+13900×2222x100= 3508

28x+13900×2222x=3508×100

28x - 22x = 350800 - (13900 × 22)

6x = 45000

x = 7500

So, sum invested in Scheme B = Rs. (13900 - 7500) = Rs. 6400


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