BTGmoderatorDC wrote: ↑Mon Jul 06, 2020 7:30 pm
Number line.jpg
Of the four numbers represented on the number line above, is r closest to zero?
(1) q = –s
(2) –t < q
OA
A
Source: Official Guide
Let's take each statement one by one.
(1) q = –s
=> q + s = 0
Since q + s = 0, we see that 0 lies at the mid-point of q and s. So, r would lie either on the right side of 0 or on the left side of 0; in either case, r is closest to 0. Sufficient.
(2) –t < q
We do not have any information about r and s. Either r or s can be closest to 0. Insufficient.
Correct answer:
A
Hope this helps!
-Jay
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