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If it takes 3 brick layers 6 hours to build a wall how long would it take 2 brick layers to build the same wall?
I think that'd be 8 hours. 6/3 = 2 hours/worker. One less worker, 2 more hours.
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nine hours
Each bricklayer can complete 1/3 of the wall in 6 hours.
Two brick layers can complete 2/3 of a wall in 6 hours (2 x 1/3).
To complete the other 1/3 of the wall, the two brick layers would need another 3 hours.
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Eight workers can build a cabin in 60 hours. How many workers are needed if the cabin is to be built in 32 hours?
To determine how many workers are needed to build the cabin in 32 hours, we can use the formula: (workers) x (time) = constant. In this case, the constant is the same amount of work needed to build the cabin. So, 8 workers x 60 hours = 480 worker-hours. To build the cabin in 32 hours, we divide the constant (480 worker-hours) by the new time (32 hours) to find that 15 workers are needed to build the cabin in 32 hours.
If it takes 3 men 6 hours to dig 12 holes how long does it take 2 men to dig 9 holes?
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How long does it take to drive 240 miles at 50 mph?
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How long does it take to drive 316 miles at 70 mph?
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