Rs 5200 was partly invested in Scheme A at 10 pa CI for 2 years and Partly invested in Scheme B at 1...........

Quantitative Aptitude ( CCS) Compound Interest

Rs.5200 was partly invested in Scheme A at 10% pa CI for 2 years and Partly invested in Scheme B at 10% pa SI for 4 years. Both the schemes earn equal interests. How much was invested in Scheme A ?

Rs.1790

Rs.2200

Rs.3410

Rs.2670

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Explanation:

Amount invested in Scheme B = X
Amount invested in Scheme A = 5200 – x
X*10*4/100 = (5200-x)*21/100……………………[(1-10/100)2-1] = 21/100
40x/100 = (5200-x)*21/100
2x/5 = (5200-x)*21/100
200x = 5200*21*5 – x*5*21
200x = 546000 – 105x
305x = 546000
X = 1790
Scheme A = 5200 – 1790 = 3410