[Math Center]

1. If [latex]2x=3y=4z=20[latex], then [latex]12xyz=[latex]

A [latex]16,000[latex]
B [latex]8,000[latex] 
C [latex]4,000[latex] 
D [latex]800[latex] 
E [latex]10[latex]

 

2. [latex]0<x<y<1[latex]

Quantity A Quantity B
[latex]1-y[latex] [latex]y-x[latex]

 

3. [latex]st=\sqrt { 10 }[latex]

Quantity A Quantity B
[latex]{ s }^{ 2 }[latex] [latex]{ t }^{ 2 }[latex]

 

4. [latex]x <1[latex]
[latex]x[latex]≠[latex]0[latex]

Quantity A Quantity B
[latex]{ x }^{ 2 }+1[latex] [latex]{ x }^{ 3 }+1[latex]

 

5. If [latex]\frac{ 2y-3 }{ y }=\frac{ 3-y }{ 2 }[latex] which of the following could be the value of [latex]y[latex] ?

(A) [latex]4[latex]
(B) [latex]1[latex]
(C) [latex]-1[latex]
(D) [latex]-3[latex]
(E) [latex]-5[latex]

 

6. [latex]2u+v=14[latex]
[latex]uv=0[latex]

Quantity A Quantity B
[latex]u[latex] [latex]v[latex]

 

7. A system of equations is as shown below

[latex]x + l = 6[latex]
[latex]x-m = 5[latex]
[latex]x+p = 4[latex]
[latex]x-q = 3[latex]

What is the value of  [latex]l + m + p + q[latex] ?

(A) [latex]2[latex]
(B) [latex]3[latex]
(C) [latex]4[latex]
(D) [latex]5[latex]
(E) [latex]6[latex]

 

8.  If [latex]x + y = 750[latex], then which one of the following additional details will determine the value of [latex]x[latex] ?

(A) [latex]x + 2y = d[latex]
(B) [latex]2x + 4y = 2d[latex]
(C) [latex]2x + 2y = 1500[latex]
(D) [latex]3x = 2250-3y[latex]
(E) [latex]2x + y = 15[latex]

 

9.

Quantity A Quantity B
The average of three numbers if the greatest is [latex]20[latex] The average of three numbers if the greatest is [latex]2[latex]

 

10. [latex]y > 0[latex]

Quantity A Quantity B
[latex]{ y }^{ 3 }+{ y }^{ 4 }[latex] [latex]{ y }^{ 4 }-2{ y }^{ 2 }[latex]

 

11. If [latex]a[latex] and [latex]b[latex] are positive integers, and [latex]x = 2*3*7*a[latex], and [latex]y = 2*2*8*b[latex], and the values of both [latex]x[latex] and [latex]y[latex] lie between [latex]120[latex] and [latex]130[latex] (not including the two), then [latex]a-b =[latex]

(A) [latex]-2[latex]
(B) [latex]-1[latex]
(C) [latex]0[latex]
(D) [latex]1[latex]
(E) [latex]2[latex]

 

12. What is the maximum value of m such that [latex]{ 7 }^{ m }[latex] divides into [latex]14[latex]! evenly?

(A) [latex]1[latex]
(B) [latex]2[latex]
(C) [latex]3[latex]
(D) [latex]4[latex]
(E) [latex]5[latex]

13. How many positive integers less than [latex]500[latex] can be formed using the numbers [latex]1, 2, 3[latex], and [latex]5[latex] for the digits?

(A) [latex]48[latex]
(B) [latex]52[latex]
(C) [latex]66[latex]
(D) [latex]68[latex]
(E) [latex]84[latex]

14. If [latex]{ x+3 }^{ 2 }=225[latex], which of the following could be the value of [latex]x – 1[latex]?

(A) [latex]13[latex]
(B) [latex]12[latex]
(C) [latex]-12[latex]
(D) [latex]-16[latex]
(E) [latex]-19[latex]

15. [latex]1200x + 6000 = 13200[latex]
[latex]12y + 60 = 132[latex]

Quantity A Quantity B
[latex]x[latex] [latex]y[latex]

 

 

 

Answers:

1 C
2 D
3 C
4 A
5 D
6 D
7 A
8 E
9 D
10 A
11 B
12 A
13 D
14 E
15 C