div A == 4650
4650 customers service error 86
100 customers service error ( 86/4650) *100
B = Y
Berror = x
Total error 86+x/4650+y = 1.5
From 2
Y = 9350
Hence C
Please do not show the answer.
gmat prep - DS
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Source: Beat The GMAT — Data Sufficiency |
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rhymes_with_luck
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