A can do a job in 12 days, B can do the same job in 8 days. How long will they take together?
Show answer & explanation
Correct answer: B
Explanation
Given:
A does the work in 12 days
B does the work in 8 days
Together time = (A × B) / (A + B)
Time = (12 × 8) / (12 + 8) = 4.8