Question : 24 men can do a piece of work in 17 days. How many men will be able to do it in 51 days?
Option 1: 8
Option 2: 10
Option 3: 12
Option 4: 6
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Correct Answer: 8
Solution : $M_{1}D_{1}=M_{2}D_{2},$ where $M =$ Number of people doing the work and $D =$ Number of days taken to do the work. So, $24 \times 17=M_{2} \times 51$ $⇒M_{2} =\frac{24 \times 17}{51} = 8$ men Hence, the correct answer is 8.
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