Best Answer

Eight hours.

Q: If a crew of 4 workers complete the job in 10 hours how long will it take 5 workers to complete the same job?

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The way to calculate this is to figure out what fraction each does in an hour (1/20 of the job, vs. 1/25 of the job). Add the fractions together to see how much they do together in an hour, then take the reciprocal to find out how many hours it takes them.

3 hours

It would still take six hours.

Machine # 1 works at a rate of 1/2 truckload per hour, while machine 2 works at a rate of 1/4 truckload per hour. The two machines together work at a rate of 3/4 truckload per hour complete the job 1/(3/4) = 1-1/3 hours.

192 minutes or 0.1333333 hours.

Related questions

10 hours

2 hours and 36 minutes

12 hours

6 hours

They worked long hours in dangerous conditions with no benefits.

The way to calculate this is to figure out what fraction each does in an hour (1/20 of the job, vs. 1/25 of the job). Add the fractions together to see how much they do together in an hour, then take the reciprocal to find out how many hours it takes them.

Not very long

long worked hours

3 hours

Oh not that long, a couple of hours! Thanks for asking!

Oh not that long, a couple of hours! Thanks for asking!

Three thousand workers took one (1) year and 45 days to complete the building working Sundays and holidays!