Tran has four different hats. He always wears a hat on weekdays for the whole day. Sometimes he wears the same hat more than once in a week.
In how many different ways might he decide to wear his hats in one week?
MON
TUE
WED
THU
FRI
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Topics: Starter  Combinations  Data Handling  Probability  Problem Solving
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Previous Day  This starter is for 12 July  Next Day
The answer is 4^{5}
= 4 x 4 x 4 x 4 x 4
= 1024
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