JEE Main 2008MathematicsMathematical ReasoningLogical StatementmediumMCQ

JEE Main 2008Mathematical Reasoning Question with Solution

From: AIEEE 2008

Question

Let p be the statement “x is an irrational number”, q be the statement “y is a transcendental number”, and r be the statement “x is a rational number iff y is a transcendental number”.

Statement –1: r is equivalent to either q or p.

Statement –2: r is equivalent to

Choose an option

Show full solutionCorrect option: A
Correct answer
AStatement − 1 is false, Statement − 2 is false

Step-by-step explanation

p : x is an irrational number

q : y is a transcendental number

r : x is a rational number, if y is a transcendental number

r : p q

S1 : r q p

and S2 : r (p q)

p q r

Statement I

Statement II

T T F F F T F T
T F F T T T T F
F T T F T T T F
F F T T F F F T

It is clear from the table that r is not equivalent to either of the statements.

Therefore, both statements are false.

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the Mathematical Reasoning chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

About this question

This is a previous-year question from JEE Main 2008, 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.