Vincen wrote:How many integers are greater than x, but less than y?
(1) y = x + 5
(2) x=√5
Statement 1:
Case 1: x=0 and y = x+5 = 0+5 = 5
In this case, there are 4 integers between x and y:
1, 2, 3, 4.
Case 2: x=0.5 and y = x+5 = 0.5 + 5 = 5.5
In this case, there are 5 integers between x and y:
1, 2, 3, 4, 5.
Since the number of integers between x and y can be different values, INSUFFICIENT.
Statement 2:
No information about y.
INSUFFICIENT.
Statements combined:
Since x = √5 ≈ 2.24 and y = x + 5 ≈ 5 + 2.24 = 7.24.
Thus, there are 5 integers between x and y:
3, 4, 5, 6, 7.
SUFFICIENT.
The correct answer is
C.
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