JEE Main 2019 — Mathematical Reasoning Question with Solution
From: JEE Main 2019 (Online) 9th April Evening Slot
Question
If p (q r) is false, then the truth values of p,
q, r are respectively :-
Choose an option
Show full solutionCorrect option: B
Correct answer
BT, F, F
Step-by-step explanation
p (q r)
= p (q r)
p (q r) is false when
(1) p = False P = True
and (2) (q r) is false q and r both are false.
= p (q r)
p (q r) is false when
(1) p = False P = True
and (2) (q r) is false q and r both are false.
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This is a previous-year question from JEE Main 2019, covering the Mathematical Reasoning 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.