100 workers working 8 hours a day can dig a canal 2000 metres long in 25 days. Find the number of workers required to dig a similar canal of 2800 metres long in 32 days working 5 hours a day.

Correct option is C

​$$\frac{M_1 \times D_1 \times H_1}{W_1}= \frac{M_2 \times D_2 \times H_2}{W_2}\\\frac{100 \times 8 \times 25}{2000}= \frac{M_2 \times 32\times 5}{2800}$$

​$$M_2$$ = 175 MEN