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JSCE Mathematics 2022 Objective — Question 13

Question 13 of 80 from the Junior Secondary Certificate Examination (JSCE) Mathematics 2022 Objective paper, with the correct answer and a full explanation.

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The variable y is inversely proportional to variable x. If y = 0.4 when x = 2.5, find the value of the constant of proportionality.

  • A. 4
  • B. 3
  • C. 2
  • D. 1Correct

Explanation

k = xy = 2.5 × 0.4 = 1.

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