GMAT Club Tests | Re: M20-16

A/B=125/100
SO A/B=5/4
AND
B/C=80/100
SO B/C=4/5
THAT MEANS
A:B:C=5:4:5
ACCORDING TO QUESTION
5 PART=10
1 PART=2

SO THAT
A=10 AND B=8
AND DIFFERENCE IS 10-8=2
ANS = 2
OPTION = C

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