WAEC Mathematics 2024 Objective — Question 13
Question 13 of 50 from the West African Examinations Council (WAEC) Mathematics 2024 Objective paper, with the correct answer and a full explanation.
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13. A variable W varies partly as M and partly inversely as P. Which of the following correctly represents the relation with k₁ and k₂ constants?
- A. W = k₁M / k₂P
- B. W = (k₁+k₂)M / P
- C. W = k₁M + k₂/PCorrect
- D. W = (k₁+k₂)M + P
Explanation
W ∝ M and W ∝ 1/P combine (partial variation) to give W = k₁M + k₂/P.
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