Raj has ten pairs of red, nine pairs of white and eight pairs of black shoes in a box. If he randomly picks shoes one by one (without replacement) from the box to get a red pair of shoes to wear, what is the maximum number of attempts he has to make ?
A
27
B
36
C
44
D
45
Correct Answer: Option D
Explanation
To solve this, we use the **Worst-Case Scenario Logic**, which is a standard pattern in CSAT (seen in the 2017 'balls in a bag' question [1]).