Today Puzzle #749
Puzzle No. 749 鈥� Thursday 28 May 2020
During lock-down Mum and Dad are taking turns to do the housework. On an average day, it takes Dad one hour to hang out the washing and do the dishes. Mum does these same housework chores in 40 minutes. How much time would they save if they worked as a team to do this housework?
Today’s #PuzzleForToday has been set by Dr Steve Humble from Newcastle University
Click here for the answer
Working together it will take Mum and Dad 24 minutes to do the housework on an average day.
Details of a possible solution.
Solving the following two equations gives us one way of obtaining the solution to this puzzle
(1/M) = (1/40)
(1/D) = (1/60)
Adding these gives the team time
(1/M) + (1/D) = (1/40) + (1/60) = (5/120) = (1/24)
A teamwork time of 24 minutes.
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