Question

In one day, a rickshaw puller earned Rs $137\frac{1}{2}$. Out of this money, he spent Rs $56\frac{3}{4}$ on food. How much money is left with him?

Answer 1

Money left with the rickshaw puller = Money earned by him in a day $-$ Money spent by him on food
$$\begin{gathered} =\mathrm{Rs}\left(137\frac{1}{2}-56\frac{3}{4}\right)\mathrm{L}.\mathrm{C}.\mathrm{M}.\mathrm{of}2\mathrm{and}4=\left(2\times 2\right)=4 \\ =\mathrm{Rs}\left(\frac{275}{2}-\frac{227}{4}\right)\left\{\left[4÷2=2,2\times 275=550\right]\mathrm{and}\left[4÷4=1,1\times 227=227\right]\right\} \\ =\mathrm{Rs}\left(\frac{550-227}{4}\right)=\mathrm{Rs}\left(\frac{323}{4}\right)=\mathrm{Rs}80\frac{3}{4} \end{gathered}$$
Hence, Rs $80\frac{3}{4}$ is left with the rickshaw puller.