GMAT Math Practice Test #1

Answer: C

First simplify and express x ,y and z in decimal and then compare

x = 0.0025, y = 400 z = -0.0975

Key takeaway: While comparing decimal numbers or negative numbers, be careful and try to visualise mentally their position on the line number. Negative numbers are less than the positive numbers. And 0.09 is less than 0.01