SSC CHSL Model Paper 9

Let the profit = x
Profit of A $=\frac{9\mathit{x}}{10},$ Remaining profit = $\frac{\mathit{x}}{10}$
Profit of B $=\frac{\mathit{x}}{20}$
Profit of C = $\frac{\mathit{x}}{20}$
Ratio of profit $=\frac{9}{10}:\frac{1}{20}:\frac{1}{20}$
$=18:1:1$
A’s income is increased by ₹270 . When profit rises 3%
Investment of A = $\frac{270}{3}\times 100\mathrm{₹}9000.$
If investment of A, B and C = 18x, x and x
$18\mathit{x}=9000$
$\mathit{x}=500$
B’s investment = ₹500.
C’s investment = ₹500.