WATER IN THE BOAT

Algebra Level 4

A boat has sprang a leak. Till it is discovered, some water has already filled the boat. It will take 12 MEN, 3 HOURS to empty the water out of the boat. The same job done by 5 of these men will take 10 HOURS. HOW MANY MEN WILL IT TAKE TO DO THE SAME JOB IN 2 hours???

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