If X / Y=3 X and Y=4-X, what can be the value of 2 X ?

Correct Answer is : Seven and one third.

GMAT Quantitative Reasoning Practice Test 5

Question : 23 of 100

Marks: +1, -0

X / Y=3 X

and

Y=4-X

, what can be the value of

2 X

Solution:

With both equations we’ll get the following equation:

x(3x − 11) = 0

. So, X is either 0 or

11/3

we want the value of

2X

, meaning seven and one third

Go to Question:

Prev Question

Next Question