IBM Aptitude Questions: A can complete a work in 40 days and B in 28 days. In the event that A and B together take every necessary step, at that point roughly in how long will a similar function be finished?

1. A can complete a work in 40 days and B in 28 days. In the event that A and B together take every necessary step, at that point roughly in how long will a similar function be finished?

Options:

1. 17 days
2. 14 days
3. 16 days
4. 29 days

Answer

C 16 Days

Explanation:

Suppose A need to deliver 100, the daily delivery of A will be 100/40 days =2.5

The daily delivery of B will be 100/28 =3.57

Daily delivery capacity of A & B = 2.5 + 3.5 = 6

Days required for A & B to finish the task will be 100/6= 16.66

The answer is 16 Days