Problem
COM-B1-M12-P001 Set 1. Numbers
#1
★☆☆☆☆ Level 1 of 5
How many three-digit numbers with distinct digits can be formed from \(1,2,3,4,5\)?
Choose digits by positions.
There are \(5\) choices for the hundreds digit, \(4\) for the tens digit, and \(3\) for the units digit. Total: \(5\cdot4\cdot3=60\).
Problem 1 of a mini-set: careful counting.