Brain Challenge

Week 444 (22nd May 2026) 

Week 444 (22nd May 2026) 

Noah worked a total of 42 hours last week.  

On Monday, Tuesday and Wednesday, he worked the same number of hours each day.  

On both Thursday and Friday, he worked for half as long as each of the first three days.  

Noah did not work on Saturday or Sunday.  

Work out how many hours Noah worked on Friday? 

Answer: 

Let each Monday to Wednesday be x 

Total for first 3 days:  3x 

Thursday and Friday are each:  x/2 

Total week:    3x + x/2 + x/2 = 4x 

4x = 42 

X = 10.5 

Friday:    x/2 = 5.25 (or 5 hours 15 minutes)

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