Correct Answer: D
Explanation:
How many of the numbers between 100 and 300 begin or end with 2?
When 2 is in beginning - Possibilities- 1 × 10 × 10
When 2 is at the end - Possibilities- 2 × 10 × 1
When 2 is at beginning and end both- (the intersection of the above cases, which has been counted in both twice, so we will have to subtract this later)
Possibilities - 1 × 10 × 1
So the number of numbers between 100 and 300, that start or end with 2 = 100+20-10 = 110