If p and q are two non zero numbers and 18 p q ... - JAMB Mathematics 2010 Question
If p and q are two non zero numbers and 18(p+q) = 918+p)q, which of the following must be true?
A
q = 18
B
p <1
C
p = 18
D
q < 1
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Correct Option: A
Using substitution If 18(p+18) = (18 + p)q
let q = 18
imply 18(p+18) = (18+p)18
i.e 18p + 18 x 18 = 18 x 18 + 18p
Since the left hand side = the right hand side
imply that q = 18
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