GRE- Quantitative Reasoning

Answer(s): 3
Explanation: First, notice that R must equal either 1 or 2; otherwise, the sum of the three
numbers would greatly exceed 117. Assuming R = 1, the "ones" column tel s us that the value of
S would necessarily be 5. But the "tens" column would not add up correctly. Hence, R must
equal 2 and, accordingly, S must equal 3.

QUESTION: 25

The chart shows the portions of all four types of trees on Main Street. If there are 140 trees
altogether on Main Street, how many of the trees are pine?

A. 40
B. 24
C. 21
D. 15
E. 14
Answer(s): C
Explanation: First, determine the percentage of trees on Main Street that are pine: 100% - 40%
- 25% - 20% = 15%. Next, calculate the number of trees that are pine: 15% of 140 = (.15) (140)
= 21.

QUESTION: 26

A spinner containing seven equal regions numbered 1 through 7 is spun two times in a row.
What is the probability that the first spin yields an odd number and the second spin yields an
even number?

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