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14 Apr 2016, 02:38
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If 2/a + 3/a + 4/a is an integer, which of the following must also be an integer?
A. 12/a
B. 3/a
C. 6/a
D. 9/a
E. 15/a
A. 12/a
B. 3/a
C. 6/a
D. 9/a
E. 15/a
14 Apr 2016, 03:45
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2/a + 3/a + 4/a
=9/a
Answer D
=9/a
Answer D
14 Apr 2016, 04:14
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Bunuel
If 2/a + 3/a + 4/a is an integer, which of the following must also be an integer?
A. 12/a
B. 3/a
C. 6/a
D. 9/a
E. 15/a
A. 12/a
B. 3/a
C. 6/a
D. 9/a
E. 15/a
Quote:
An integer is a whole number (not a fractional number) that can be positive, negative, or zero
Using the above property we can safely assume that the value of a = 1
Now, 2+3+4 =9
So, 9/a or 9/1 is definitely an integer !!
