AP ICET 2015

Question 86

A can turnout twice the amount of work that B can do. If B alone can complete that work in 12 days, then in how many days can A and B complete that work together ?

Solution

A is twice efficient than B

So A =2

  B=1

Total efficiency of A & B=3

B can complete the work in 12 days

So total work is 12×1=12

A & B complete the work in together is =12/3=4 days


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