Q.
Consider the 10 digits $0, 1, 2, 3, ......., 9$
Statement-1: Number of four digit even numbers that can be formed if each digit is to used only once
in the number is 2268.
because
Statement-2: Total 4 digit numbers that can be formed if each digit is used only once is 4536.
Permutations and Combinations
Solution: