Mathematics
Combined Work
Find the time required when two workers work together.
Combined Rate = 1/A + 1/B; Time = 1 / Combined Rate
Formula Explanation
The combined rate is the sum of individual rates when both contribute to the same job.
Variables Explained
A and B = individual completion times in the same time unit.
Solved Example
A completes a job in 6 days and B in 3 days. Find their combined time.
Rate = 1/6 + 1/3 = 1/2 job/day. Time = 2 days.