P invests Rs.5000 in Scheme A in Simple interest at 15% per annum for 3 years and Rs.4000 at 20% for 2 years

P invests Rs.5000 in Scheme A in Simple interest at 15% per annum for 3 years and Rs.4000 at 20% for 2 years in Compound interest in Scheme B and invests the interest obtained from Scheme A and B in Scheme C at 10% for 4 years in Simple interest. Find the interest obtained from Scheme C.

a)            Rs.1604

b)            Rs.1650

c)            Rs.1635

d)            Rs.1680

e)            Rs.1662

Sol:

Interest obtained from Scheme A = 5000 * 15 *

3/100 = Rs.2250

Interest obtained from Scheme B = 4000 *

(1+20/100)2 – 4000 = 4000 * (120/100)2 =

Rs.1760

Total investment in Scheme C = 2250+1760 =

Rs.4010

Interest obtained from Scheme C = 4010 * 10 *

4/100 = Rs.1604