## (Math Quiz 10 – CT) Given 5 digits 0, 1, 2, 3, 4. How many different 5-digit numbers are made up of these 5 digits?

• Question:

Given 5 digits 0, 1, 2, 3, 4. How many different 5-digit numbers are made up of these 5 digits?

Reference explanation:

Correct Answer: GET

Call the number to look up in the form $$\overline {abcde}$$, then

+) There are 4 ways to choose the digit a (except the digit 0).

+) There are 4 ways to choose the digit b.

+) There are 3 ways to choose the digit c.

+) There are 2 ways to choose the digit d.

+) There is one way to choose the digit e.

So there are all 4.4.3.2.1 = 96 numbers to find.

ADSENSE

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