If person A can complete a work in 12 days and person B can complete it in 6 days, how many days will it take for them to complete the work together?
Q1. If person A can complete a work in 12 days and person B can complete it in 6 days, how many days will it take for them to complete the work together?
Answer: 4 days
Explanation: The correct value is 4 days. Apply the formula or arithmetic step shown in the question and