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Answered

how many 3-digits numbers can be formed using the digits 1,2,3.
a. no digit can be repeated.
b.if any digit can be used more than once
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Answer :

NAYEFXIN

Answer:

6 numbers

Step-by-step explanation:

to understand this

you need to know about:

  • factorial

given:

  • total 3 numbers

let's solve:

according to the question

3!

1×2×3

6

therefore total 6 numbers can be formed using the digits

let's see the 6 numbers

123

132

213

231

312

321

MELODY08IN

Answer:

6 numbers!!!

Step-by-step explanation:

1. 123

2. 132

3. 213

4. 231

5. 321

6. 312

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