RRB Group D 1-Dec-2013 Shift 1 Solved Paper

Question : 25 of 100

Marks: +1, -0

If 15 boys earn ₹900 in 5 days, how much will 20 boys earn in 7 days?

Solution:

\;{M_{1} D_{1}}/{W_{1}}=\;{M_{2} D_{2}}/{W 2}

⇒ \;{15 × 5}/{900}=\;{20 × 7}/{x}

⇒ x=₹ 1680

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