A person had Rs.9000 and he invested some amount in scheme A in CI at the rate of 25% per annum for one year

A person had Rs.9000 and he invested some amount in scheme A in CI at the rate of 25% per annum for one year and the remaining amount invested in scheme B. If the amount invested in scheme B is double the interest received from scheme A, then find the amount invested in scheme A?

a) Rs.4500

b) Rs.6000

c) Rs.3200

d) Rs.5000

e) None of these

Sol:

Let the amount invested in scheme A = x

And the amount invested in scheme B = 9000 – x

(x * 125/100 – x) * 2= 9000 – x

5x/2 – 2x = 9000 – x

x = 18000 – 2x

3x = 18000

x = 6000

The amount invested in scheme A = Rs.6000