RRB Group D 2-Nov-2014 Shift 1 Solved Paper

Question : 27 of 100

Marks: +1, -0

10 men working for 6 hours a day can complete a work in 18 days. For how many hours a day must 15 men work to complete the same work in 12 days?

Solution:

We know that:

{M}_{1} × {h}_{1} × {d}_{1}= {M}_{2} × {h}_{2} × {d}_{2}

According to the given condition:

10 × 6 × 18=15 × 12 × h_{2}

{h}_{2}=\;{10 × 6 × 18}/{15 × 12}=6 {hrs}

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