### Brain Teasers

# Dig a Hole

If it takes a man one hour to dig a hole two meters long, two meters wide, and two meters deep, how long would it take the same man to dig a hole four meters long, four meters wide, and four meters deep, assuming he digs at the same rate of speed?

### Answer

Eight hours. It takes twice as long to double the length, twice as long to double the width, and twice as long to double the depth. To find cubic measurement you multiply length x width x height; therefore, on the first hole, one hour equals 2m x 2m x 2m = 8 cubic meters. On the second hole, the formula is 4m x 4m x 4m=64 cubic meters.Hide Answer Show Answer

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