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Solve the inequality \(\frac{1}{3}\)(2x - 1) < 5 

Mathematics
WAEC 2025

Solve the inequality \(\frac{1}{3}\)(2x - 1) < 5 

  • A. x < -5
  • B. x < 8
  • C. x < -6
  • D. x < 7
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Correct Answer: Option B
Explanation

\(\frac{1}{3}\)(2x - 1) < 5 

Multiply through by 3

2x - 1 < 5 x 3

2x - 1 < 15

2x < 15 + 1 = 16

2x < 16

x < \(\frac{16}{2}\) < 8


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