Question Details

Let x be a real number between 0 and 1. Which of the following statements is/are correct?
I. x2 > x3.
II. x > x.
Select the correct answer using the code given below:

Options

A

I only

B

II only

C

Both I and II

D

Neither I nor II

Show Answer

Correct Answer :

Option A

I only

Solution :

The correct answer is I only.


Let us analyze the given statements step-by-step for any real number x such that 0<x<1.


Analyzing Statement I: x2>x3

Since x is a positive real number between 0 and 1, multiplying both sides of the inequality x<1 by x2 (which is positive) maintains the inequality sign:

x2·x<x2·1

x3<x2

This is equivalent to x2>x3.

For example, if x=0.5:

x2=0.52=0.25

x3=0.53=0.125

Since 0.25>0.125, Statement I is correct.


Analyzing Statement II: x>x

For any real number, a quantity cannot be strictly greater than itself. Thus, x>x is false for all values of x.


Therefore, only statement I is correct.

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