CA Foundation · Quantitative Aptitude · Linear Inequalities
For the inequality 5x − 2y > 10, which of the following points lies in its solution region?
The inequality is satisfied by several of the points, so this question is flawed.
- A(2, 0)
- B(4, 3)
- C(1, −4)Correct
- D(3, 2)
Explanation
Substitute each point. (2,0): 10 > 10 false. (4,3): 20 − 6 = 14 > 10 true. (1,−4): 5 + 8 = 13 > 10 true. (3,2): 15 − 4 = 11 > 10 true. This gives more than one point, so check again: all of (4,3), (1,−4), (3,2) satisfy.
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