If (1 < A < 3 < B), then which of the following expressions is the largest?
Answer(s): A
Try some numbers and check the answers. A=2, B=4. A. 6/1 = 6.B 2/3.C 1/2.D 2.E 2.
Which of the following fractions is the smallest?
Compare all of the answers to A. 3/10.B 3/10 x 2 = 6/20 which is smaller than 6/19.C 3/10 is smaller. D 3/10 = 9/30, and this is smaller than 11/30.E 3/10 = 12/40 and that is smaller than 12/31. The smallest fraction is A.
Which of the following fractions is the largest?
Answer(s): C
Let’s compare all the answers to 2/7, unless we find a larger fraction.B 2/3 is larger than 2/7. For now, this is the right answer.C 2/3 is also 6/9 and that is smaller than 7/9. For now, this is the right answer.D 7/9 is bigger than 7/12.E Bring this answer and C. to a common denominator. 7/9 = 35/45 and 3/5 = 27/45.7/9 is the largest fraction.
If A2 + B2 = 15 and AB = 10, what is the value of the expression (A – B)2 + (A + B)2?
(A – B)2 + (A + B)2 = A2 – 2AB + B2 + A2 + 2AB + B2 = 2(A2 + B2) = 30.
If A and B are positive integers, which of the following expressions is not an integer for certain?
Answer(s): D
All the answers besides D are numbers after some simplification. Answer D = (A + B)/(A+B)2 = 1/(A+B), and this is a fraction of a number.
Post your Comments and Discuss Test Prep GMAT Test exam prep with other Community members:
Our website is free, but we have to fight against AI bots and content theft. We're sorry for the inconvenience caused by these security measures. You can access the rest of the GMAT Test content, but please register or login to continue.