Just took my second official GMAT practice test, scored a 49Q. I missed a few questions with the similar greater than/less than theme. How would you approach & solve the data sufficiency problems below?
1. If n and p are integers, is p > 0?
i) n + 1 > 0
ii) np > 0
2. Are positive integers p and q both greater than n?
i) p - q is greater than n
ii) q > p
3. If w + x < 0, is w - y > 0?
i) x + y < 0
ii) y < x < w
Also, I couldn't figure out how they came to the answer given on the question below--maybe someone can solve it for me:
4. If x < 0, then √( -x |x| ) is:
a) -x
b) -1
c) 1
d) x
e) √(x)
(√ = square root)
1. If n and p are integers, is p > 0?
i) n + 1 > 0
ii) np > 0
2. Are positive integers p and q both greater than n?
i) p - q is greater than n
ii) q > p
3. If w + x < 0, is w - y > 0?
i) x + y < 0
ii) y < x < w
Also, I couldn't figure out how they came to the answer given on the question below--maybe someone can solve it for me:
4. If x < 0, then √( -x |x| ) is:
a) -x
b) -1
c) 1
d) x
e) √(x)
(√ = square root)
