Question

All the members of a construction crew work at the same pace. six of them working together are able to pour foundation in 22 hours. how many hours would this job take if the number of workers:decreased by factor of 2

Answer 1

As it is ,6 men taking 22 hours equals:
1/6 x 1/22=1/132 of the work done by each man, per hour.
4/132=1/33
4 workers take 33 hours
3/132=1/44
3 workers take 44 hours to do the job
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