JEE Main 2020 — Probability Question with Solution
JEE Main 2020 (07 Jan Shift 2)
Question
In a workshop, there are five machines and the probability of any one of them to be out of service on a day is . If the probability that at most two machines will be out of service on the same day is then is equal to
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Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
Given and
Required probability when no machine has fault when one machine has fault when two machines have fault.
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This is a previous-year question from JEE Main 2020, covering the Probability chapter of Mathematics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.