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OAU Post-UTME Mathematics 2017 (Set 1 Type 1) Question 1

Question 1

Probability

A man kept 6 black, 5 brown and 7 purple shirts in a drawer. What is the probability of him picking a purple shirt at random

  1. A.1/7
  2. B.7/18
  3. C.11/18
  4. D.7/11
Show the answer and explanation

Answer: B (7/18)

Explanation

There are 18 shirts and 7 are purple, so the probability is 7/18.