How many 5-digit numbers can be formed using the digits 1, 2, 3, 4, 5, 6, 7 if repetition of digits is not allowed?

asked Oct 24, 2021 207k views

0 votes

7.4k points

Please log in or register to add a comment.

1 vote

Answer:

2,520

Step-by-step explanation:

nPr=n!/(n-r)!

7P5=7!/2!=2,520

Hope this helped

Derek Redfern answered Oct 30, 2021

6.7k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

7.8m questions

10.5m answers