I am starting this thread to list all the tricks/ patterns used by GMAT. My source of learning these tricks is the AWESOME Gmat club's quant tests.
. I request all of you to contribute.
1. Which is prime no?
b. (1 -18)
c. ( 5- 12)
2. Any Diff between positive and non-negative integer?
Now, One gem from GC's test: M27-20
C. 0 is non-negative but not positive
If x and y are integers, is x a positive integer?
(1) x∗|y| is a prime number.
(2) x∗|y| is a non-negative integer.
YOU CAN, IF YOU THINK YOU CAN