Question : If 10 men can do work in 10 days, then in how much time will 2 men do the same work?
Option 1: 75 days
Option 2: 60 days
Option 3: 25 days
Option 4: 50 days
Correct Answer: 50 days
Solution :
We know, $M_1D_1= M_2D_2$, where $M_1$ and $M_2$ are persons and $D1$ and $D_2$ are days.
Here, $M_1$ = 10, $M_2$ = 2, and $D_1$ = 10 days
So, 10 × 10 = 2 × $D_2$
⇒ $D_2$ = $\frac{100}{2}$ = 50 days
Hence, the correct answer is 50 days.
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