JAMB Mathematics 2019 Objective — Question 23
Question 23 of 40 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2019 Objective paper, with the correct answer and a full explanation.
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If P varies inversely as the cube of q and q varies directly as the square of r, what is the relationship between p and r?
- A. P varies inversely as r⁶Correct
- B. P varies directly as r⁶
- C. P varies directly as r³
- D. P varies inversely as 6√r
Explanation
P∝1/q³ and q∝r², so q³∝(r²)³=r⁶, giving P∝1/r⁶ — P varies inversely as r⁶.
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