Management Aptitude Test Feb 2012 Paper

(3) Ratio of investment of A, B and C = Ratio of profit of A, B and C =

9

10

:

1

20

:

1

20

= 1 8 : 1 : 1
Also, given that A’s income is increased by ₹ 270, when the profits rises 3% (from 12% to 15%)
∴ Investment of A =

270

3

x 100 = ₹ 9000
If investment of A, B and C, 18x, x and x, then
18x = 9000
x = ₹ 500
Hence, the capital invested by B and C each is ₹ 500.