Published by:
CGP EDU Academic Team
Published on: August 13, 2026
In a box of 10 electric bulbs, two are defective. Two bulbs are selected at random one after the other from the box. The first bulb after selection being put back in the box before making the second selection. The probability that both the bulbs are without defect is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Here 
(without defected) 
(defected) 
and 
Hence required probability 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
8 coins are tossed simultaneously. The probability of getting at least 6 heads is
In a box containing 100 eggs, 10 eggs are rotten. The probability that out of a sample of 5 eggs no…
If the probability that a student is not a swimmer is 1/5, then the probability that out of 5 stude…
A fair coin is tossed n times. If the probability that head occurs 6 times is equal to the probabil…
If three dice are thrown together, then the probability of getting 5 on at least one of them is
If a dice is thrown 7 times, then the probability of obtaining 5 exactly 4 times is