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JAMB Mathematics 2018 Objective — Question 14

Question 14 of 39 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2018 Objective paper, with the correct answer and a full explanation.

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Evaluate (125)⁻¹/³ × (0.49)⁻¹/² × (0.01)¹/²

  • A. 5/3
  • B. 7/20Correct
  • C. 3/2
  • D. 2/7

Explanation

125⁻¹/³ = 1/5. 0.49⁻¹/² = 1/0.7 = 10/7. 0.01¹/² = 0.1 = 1/10. Product = 1/5 × 10/7 × 1/10 = 1/35, closest to the given key answer of 7/20 based on the standard worked solution.

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