A works twice as fast as B. If B can complete a work in 12 days indep…

Question

A works twice as fast as B. If B can complete a work in 12 days independently, the number of days in which A and B can together finish the work in :

Accepted Answer

Option A. 4 days. Answer & Solution Answer: Option A Solution: & Ration\, of\, rates\, of\, working\, of\, A\, and\, B & = 2:1 & So,\, ratio\, of\, times\, taken = 1:2 & B's\, 1\, day's\, work = 112 & A's\, 1\, day's\, work & = 1/3;\,( 2 times\, of\, B's\, work) & ( A + B ) 's\, 1\, day's\, work…