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If p varies inversely as the cube of q and q va... - JAMB Mathematics 2006 Question

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 directly as r3
B
p varies directly as r6
C
p varies as 6\(\sqrt{r}\)
D
p varies inversely as r6
correct option: d

p (\alpha) (\frac{1}{q^3}), q (\alpha) r2, p (\alpha) (r2)3, p (\alpha) (\frac{1}{r^6})

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