Question 136
1. If X ~ Y = X2 + XY, then what is the value of -1 ~ 2 ?
- 1.
- -1.
- 3.
- 4.
- 2.
Question 137
If (1 < A < 3 < B), then which of the following expressions is the largest?
- (B+2)/(A-1).
- (B-2)/(A+1).
- A/B.
- (B-2)/(A-1).
- B/A.
Question 138
Which of the following fractions is the smallest?
- 3/10.
- 6/19.
- 3/8.
- 11/30.
- 12/31.
Question 139
Which of the following fractions is the largest?
- 2/7.
- 2/3.
- 7/9.
- 7/12.
- 3/5.
Question 140
If A2 + B2 = 15 and AB = 10, what is the value of the expression (A – B)2 + (A + B)2?
- 10.
- 20.
- 30.
- 60.
- 70.