Correct Answer - Option 3 : 6
Given:
The given digits are 1, 2, 3 and 5
Concept used:
If the last number should be even, then the entire number is divisible by 2
Calculation:
Since each desired number is divisible by 2, so we must have 2 at the unit place.
The Number of ways to fill unit place = 1
Tens place can be filled by any of the remaining 3 digits (1, 3, and 5)
The Number of ways to fill tens place = 3
The hundreds place can be filled by any remaining 2 digits
The Number of ways to fill hundreds place = 2
Number of ways = 1 × 3 × 2 = 6
∴ Total 3 digits number can be formed is 6
