P can complete a work in 12 days working 8 hours a day. Q can complet…

Question

P can complete a work in 12 days working 8 hours a day. Q can complete the same work in 8 days working 10 hours a day. If both P and Q work together, working 8 hours a day, in how many days can they complete the work?

Accepted Answer

Option A. 5 511. Answer & Solution Answer: Option A Solution: & P\, can\, complete\, the\, work & = \, ( 12 × 8 ) hrs . = 96\, hrs . & Q\, can\, complete\, the\, work & = ( 8 × 10 ) hrs . = 80\, hrs . & P's\, 1\, hour's\, work = 196\, and & Q's\, 1\, hour's\, work = 180 & ( P + Q ) 's\, 1\, hour…