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24 Dec 2013, 03:45
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
92% (00:28) correct
8%
(00:36)
wrong
based on 1652
sessions
History
Date
Time
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Not Attempted Yet
What is the value of r/2 + s/2 ?
(1) (r + s)/2 = 5
(2) r + s = 10
(1) (r + s)/2 = 5
(2) r + s = 10
24 Dec 2013, 03:45
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SOLUTION
What is the value of r/2 + s/2 ?
\(\frac{r}{2}+ \frac{s}{2}=\frac{r + s}{2}\)
(1) (r + s)/2 = 5 --> directly answers the question. Sufficient.
(2) r + s= 10 --> \(\frac{r + s}{2}=\frac{10}{2}=5\). Sufficient.
Answer: D.
What is the value of r/2 + s/2 ?
\(\frac{r}{2}+ \frac{s}{2}=\frac{r + s}{2}\)
(1) (r + s)/2 = 5 --> directly answers the question. Sufficient.
(2) r + s= 10 --> \(\frac{r + s}{2}=\frac{10}{2}=5\). Sufficient.
Answer: D.
25 Dec 2013, 10:46
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The question can be rephrased as (r+s)/2, since the denominator is the same. So, ultimately we need to find out either r and s individually or (r+s) as a value.
This can be arrived without looking at the statements.
Statement 1 and Statement 2 both give the value of (r+s) alone. So, answer is D.
This can be arrived without looking at the statements.
Statement 1 and Statement 2 both give the value of (r+s) alone. So, answer is D.
