Question

How many three digits numbers can be formed using 2, 3, 4 and 5 with none of the digits being repeated? Solution?

Answer 1

4*3*2=24 different digits can be formed using 2,3,4, and 5

Answer 2

Answer: There are 24 three digits numbers.

Step-by-step explanation:

Since we have given that

Given digits : 2,3,4, and 5

Numbers given = 4

We need to form 3 digit number.

Repetition is not allowed.

So, we will use "Fundamental theorem of Counting":

So, there are 4 options for the first digit.

There are 3 options for the second digit.

There are 2 options for the third digit.

So, it becomes,

$4\times 3\times 2\\\\=12\times 2\\\\=24$

Hence, there are 24 three digits numbers.