CA Foundation · Quantitative Aptitude · Linear Inequalities
Which of the following is a strict inequality?
The strict inequality is 5x + 2 < 3x − 8, because it uses the sign '<', which does not allow equality. The signs ≥ and ≤ give slack inequalities, and x = 4 is an equation, so none of those three is strict.
- Ax + 3 ≥ 7
- B2x − 1 ≤ 9
- C5x + 2 < 3x − 8Correct
- Dx = 4
Explanation
A strict inequality uses only the signs < or >, which exclude equality. Option C uses '<'. Options A and B use ≥ and ≤, which are slack (weak) inequalities, and option D is an equation, not an inequality.
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