What is the remainder when the positive integer n is divided by the positive integer k, where k > 1? (1) n = (k + 1)^3 (2) k = 5
这题选A 可以解释一下吗？
If t is a positive integer and r is the remainder when t^2+ 5t + 6 is divided by 7, what is the value of r?
(1) When t is divided by 7, the remainder is 6. (2) When t^2 is divided by 7, the remainder is 1.
这题选A 怎么做呢？
If zy < xy < 0, is |x -z| + |x| = |z|? (1) z < x (2) y > 0
这题选D
If 500 is the multiple of 100 that is closest to x and 400 is the multiple of 100 that is closest to y, which multiple of 100 is closest to x + y? (1) x < 500
(2) y < 400
这题选E
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发表于 2017-11-4 17:36:53
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