JAMB Mathematics 2016 Objective — Question 13
Question 13 of 50 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2016 Objective paper, with the correct answer and a full explanation.
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13. If x19 = 235 find x. A. 15 B. 12 C. 14 D. 13
- A. 15
- B. 12
- C. 14
- D. 13Correct
Explanation
23₅ = 2×5¹+3×5⁰ = 13. Thus, x₁₀ = 23₅, x = 13.
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