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
