Relevant Competitive Tests:
A box contains nine bulbs out of which 4 are defective. If four bulbs are chosen at random, find the probability that all the four bulbs are defective.
A. 62/63
B. 125/126
C. 1/63
D. 1/126Correct Answer
Correct Option: D. 1/126
This question has been verified by the PakPrep community moderation network for competitive examination accuracy.
Subject Overview
Explore thousands of solved past paper MCQs for Maths Mcqs categorized with explanations.
Browse All Maths Mcqs MCQs →