Problema Solution
A cabinetmaker uses a power saw to cut a piece of timber into 5 pieces in 2 minutes. How long would it take to cut a similar piece of timber into 8 pieces?
Answer provided by our tutors
let x = the minutes needed to cut a timber into 8 pieces
5 : 2 = 8 : x
by solving we find
x = 3.2 min
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it will take him 3.2 minutes to cut the timber into 8 pieces.