Three men at 6:00am started to dig two holes. One of them, working alone, completed his hole 3x3x3, in one hour. The other two men, Each working at the same speed as the first, made their 9x9x9. How long did it take the two men to complete their hole?
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13.5 hours
3 x 3 x 3 = 27units -the total hole size it takes to dig in 1 hour
9 x 9 x 9 = 729 units -the total hole size that needs to be dug
729 / 27 = 27 -divide the total into 1 hour sections to get the total hours
27 / 2 = 13.5 -divide it by 2 because there are two men working
13.5 hours (or 13 hours and 30 minutes)
3 x 3 x 3 = 27units -the total hole size it takes to dig in 1 hour
9 x 9 x 9 = 729 units -the total hole size that needs to be dug
729 / 27 = 27 -divide the total into 1 hour sections to get the total hours
27 / 2 = 13.5 -divide it by 2 because there are two men working
13.5 hours (or 13 hours and 30 minutes)
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The rate that they all dig the holes is at 27 cubic (feet, meters, yards, etc.) per hour.
The 9X9X9 hole is 729 cubic (length), which, at a rate of 27 cubic (length) per hour would take them 27 hours.
The 9X9X9 hole is 729 cubic (length), which, at a rate of 27 cubic (length) per hour would take them 27 hours.