X Y and Z can complete a piece of work individually in 6 hours 8 hours and 8 hours respectively Howe...........

Math and Mental Ability Time and work

X, Y and Z can complete a piece of work individually in 6 hours, 8 hours and 8 hours respectively. However, only one person at a time can work in each hour and nobody can work for two consecutive hours. All are engaged to finish the work. What is the minimum amount of time that they will take to finish the work?

This questions was previously asked in

UPSC CSAT, Previous year (2024)

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6 hours 15 minutes

6 hours 30 minutes

6 hours 45 minutes

7 hours

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