Free GRE GRE Exam Questions (page: 70)



GRE- Quantitative Reasoning
A. white to green
B. white to blue
C. white to red
D. red to white
E. green to white

Answer(s): C
Explanation: Here's the sequence up to the 12th second:

Every time you reach a time divisible by 6, the sequence starts over with W and proceeds: W-B-
W-G-W-R. 204 is divisible by 6; hence, starting at the 204th second, here are the light's
movements through the 209thsecond:

As you can see, the movement from the 208th to the 209th second is from white (W) to red (R).

QUESTION: 51

A solution of 60 ounces of sugar and water is 20% sugar. If you add x ounces of water to make
a solution that is 5% sugar, which of the following represents the amount of sugar in the solution
after adding water?

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