Question on: JAMB Mathematics - 2008
If p = varies inversely as the square of q and p=8 when q=4, find when p=32
A
+/-16
B
+/-8
C
+/-4
D
+/-2
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Correct Option: D
P ∝ 1/q
P = k/q
K = q2P
= 428
∴P = 128/q
32 = 128/q
q2 = 128/32
q2 = 4
q = √4 = +/-2
P = k/q
K = q2P
= 428
∴P = 128/q
32 = 128/q
q2 = 128/32
q2 = 4
q = √4 = +/-2
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