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.

HomeCategoriesQuizSaved (0)Profile