Abraham can complete a work in 9 days, while Andrew can complete the same work in 6 days. In how many days can they complete the work if they work together?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. .
Let the total work be LCM(9 and 6) = 18 units
Work done by Abraham in 1 day =
Work done by Andrew in 1 day =
Working together they compete 3 + 2 = 5 units in 1 day
Hence, they will complete 18 units in = days = days