GMAT Quantitative Reasoning Practice Test 4

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Question : 92 of 100

Marks: +1, -0

If

X

percent of

2.5 X

are

3 X

, then

X

could be?

90
120
150
170
180

Solution:

X

percent is

X / 100

.

X

percent of

2.5 X

is

(X / 100)(2.5 X)=(X{ /} 100)((5 X) {/} 2)=3 X

divide both sides by

X

.

(X / 40)=3 → X=120 .

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