After completing a work together in 2 days, P and Q received Rs.1200 and Rs.400 respectively as wages. In how many days will Q alone complete the work?
ratio of efficiency of P and Q isÂ
P : Q = 1200 : 400 = 3 : 1
total work = time * effciancy = 4 * 2 = 8
Q alone can do the work in = work/efficiency = 8/1 = 8 days
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