If 4/p=8 & 4/q=18 then p-q=?

If 4/p=8 & 4/q=18 then p-q=?

Quiz

Answer/Solution

5/18

Steps/Work

p=4/8 , q=4/18=>q=2/9
therefore
p-q=(1/2)-(2/9)=5/18
ANSWER:A

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