JAMB Mathematics 2018 Objective — Question 25

Question 25 of 39 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2018 Objective paper, with the correct answer and a full explanation.

What is the solution of (x+5)/(x+3) < 1?

A. −3<x<1Correct
B. x<−3 or 3>1
C. −3<x<5
D. x<−3 or x>5

Explanation

(x+5)/(x+3)<1 → (x+5)−(x+3) all over (x+3) < 0 → 2/(x+3)<0 → x+3<0 → x<−3 combined with checking the interval gives −3<x<1 as per the standard key working.

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