GMAT Quantitative Reasoning Practice Test 4

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Question : 52 of 100

Marks: +1, -0

Z

is

120 \%

of

Y . X

is smaller than

Z

by

80 \%

.
What percentage is

X

of

Y

?

$96 \%$
$24 \%$
$50 \%$
$40 \%$
$45 \%$

Solution:

Pick numbers:

Y=100 → Z=120 → X=0.2 × 120=24 . X \/ Y

=24 \%

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