JAMB Mathematics 2010 Objective — Question 18
Question 18 of 50 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2010 Objective paper, with the correct answer and a full explanation.
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18. If x is inversely proportional to y and x=2 1/2 when y=2, find x if y=4. A. 1 1/4 B. 2 1/4 C. 4 D. 5
- A. 1 1/4Correct
- B. 2 1/4
- C. 4
- D. 5
Explanation
x=k/y. 2.5=k/2, k=5. x=5/y. When y=4, x=5/4=1 1/4.
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