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A four-digit number is to be made using the digits 1, 3, 5, and 8. How many numbers can be made if repeated digits are allowed?

A Fourdigit Number Is To Be Made Using The Digits 1 3 5 And 8 How Many Numbers Can Be Made If Repeated Digits Are Allowed class=

Sagot :

We want to make a four digit number using numbers 1, 3, 5 and 8 and allowing repetition.

Therefore, there is four possibilities each for the units, tens houndreds and thousands.

Then, the total number of possibilities is:

[tex]4\cdot4\cdot4\cdot4=4^4=256[/tex]

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