Question

Please answer this math question.

Answer 1

21 minutes

Explanation:

To cut a 5-ft log into 5 equal peices, you need to make 4 cuts (each cut cuts one piece from a whole log, the last cut divides the remaining log into two pieces).

If it takes
`5(1)/(4)` minutes to make one cut, then it takes

`5(1)/(4)\cdot 4=(5\cdot 4+1)/(4)\cdot 4=(21)/(4)\cdot 4=21`

minutes to cut the log into 5 equal pieces.