Divisible by 5, No Repeats
Difficulty: Medium · Topics: Discrete Mathematics, Combinatorics, Counting Principle
A=\0,2,4,5,6\
How many four-digit natural numbers with no repeated digits and divisible by 5 can be written using elements of A?
Difficulty: Medium · Topics: Discrete Mathematics, Combinatorics, Counting Principle
A=\0,2,4,5,6\
How many four-digit natural numbers with no repeated digits and divisible by 5 can be written using elements of A?