RRB Junior Engineer Stage 1 Model Papers 6

Let total investment = x
Investment by Raman $=\frac{2\mathit{x}}{5}$
Investment by Manan $=\frac{3\mathit{x}}{8}$
Investment by Kamal $=\mathit{x}-\left(\frac{2\mathit{x}}{5}+\frac{3\mathit{x}}{8}\right)=\frac{9\mathit{x}}{40}$
Ratio of invest of Raman, Manan and Kamal $=\frac{2\mathit{x}}{5}:\frac{3\mathit{x}}{8}:\frac{9\mathit{x}}{40}=16:15:9$
∴ Ratio of profit of Raman, Manan and Kamal= 16 : 15 : 19