A job takes 8 hours to complete. If 2 people work on it together, how long will it take?
Answer
4 hours
How to solve it
1
Job duration (1 person): 8 hours
2
Number of people: 2
3
Time (2 people): 8 ÷ 2 = 4 hours
Hints
With more people, the work goes faster
Divide by number of people