1. P alone can complete the work in 5 days, Q alone can do same work in 6 days and R alone can do the same work in 12 days. They jointly complete the work and earn Rs 5400. What is the share of R?
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By: anil on 05 May 2019 02.27 am
Ratio of efficiencies of P:Q:R = $$frac{1}{5}:frac{1}{6}:frac{1}{12}$$ = $$frac{60}{5}:frac{60}{6}:frac{60}{12}=12:10:5$$ $$ herefore$$ Share of R = $$frac{5}{(12+10+5)} imes5400$$ = $$5 imes200=Rs.$$ $$1000$$ => Ans - (A)
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