Question

Plz only answer Q. 19 with full process... plz

Answer 1

Answer :

Option (B) - I and II only.

Explanation : 

Given x = 9/11.

(I) The reciprocal 1/x = 1/9/11

                                   = 11/9

                                   = 1.222 > 1(The statement is true because it is positive).

(II) x + 1/x = 1 + 1/x

                = 1 + 1/9/11

                = 1 + 1/99

               = 100/99

              = 1.01 > 1 (This statement is true because it is positive).


(III) x + 1/x - 1 = 9/11 + 1/9/11 - 1

                    = 20/11/ -2/11

                   = - 20 * 11/11 * 2

                   = - 20/2

                   = -10. (This statement is false - because it is negative).


Options Verification :

(1) I only = correct. But Not only I but II is also positive.

(2) I and II only = correct.

(3) I and III only. = Incorrect (Because I is positive and III is negative).

(4) II and III only = Incorrect (Because II is positive and III is negative).


Therefore the correct answer is I and II only.


Hope this helps!