GMAT Quantitative Reasoning Practice Test 3

Question : 85 of 100

Marks: +1, -0

QUESTION

285 X

years in the future, Zach will be

Y

years old.

Z

years in the future, Zach will be how old?

Solution:

Write the following equations: Zach

+X=Y

and Zach

+Z=

?
Put Zach from the first equation and place it in the second one:

Y-X+Z

is the age in

Z

years.

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