1 |
If A > B an C < 0, then which of the following is not true ? |
AC < BC
A + C > B + C
A - C < B - C
All of the above
|
2 |
If a + b > 7 and a - b > 5, then which of the following gives all possible values of a and only possible value of a ? |
a > 6
a < 5
a > 4
a < 7
|
3 |
If a > 0, b > 0 and a - b < 0, then ? |
a < b
a + b <0
a > b
b - a < 0
|
4 |
If xy > 0 and x < 0, which of the following negative ? |
-<i>x</i>
-y
y
xy
|
5 |
If x and y are positive integers and x2 + 2y2 = 41, 2x2 + y2 = 34, then x2 = |
6
8
75
9
|
6 |
If 4x+5 = 8x-1 , what is the value of x ? |
3/5
- 5/3
- 3/5
4
|
7 |
If x is a positive number and x2 + 36 = 100, what is the value of x ? |
6
8
14
64
|
8 |
If 1/x-y = 7, then x = |
<i>x</i> + 1/7
<i>x</i> - 1/7
1/7 - <i>x</i>
<i>x</i>/7 -1
|
9 |
If 8110 = 3x-7 , what is the value of x ? |
47
27
51
14
|
10 |
If 2x - 3 = 15, what is the value of (2x - 3)2 ? |
81
227
±225
225
|
11 |
If 1/2 x + 1/4 x + 1/8 x = 22, what is the value of x ? |
88
44
1
24
|
12 |
If at - b = c - dt, what is the value of t in terms of a, b, c and d ? |
b-c/a-d
a/b
c/d
b+c/a+d
|
13 |
If x - 5 = 9, what is the value of x2 - 5 ? |
196
191
16
11
|
14 |
If 3x + 17 = 9 - x, what is the value of x ? |
2
3
-2
-3
|
15 |
If 5x + 12 = 44, what is the value of 5x - 12 ? |
24
32
20
22
|
16 |
If 3x + 9 = 18, what is the value of x + 3 ? |
3
6
-3
36
|
17 |
3x2 - 27/x-3 and (x>0), is: |
less than 2<i>x</i>+9
equal to 2<i>x</i> + 9
greater than 2<i>x</i> + 9
cannot find
|
18 |
(a + b)(a - b) = |
a(a - b) - b(a - b)
a(b - a) + b(a - b)
a(a + b) - b(b + a)
a(a - b) + b(b - a)
|
19 |
If a = -5 and b = 3 then -a2 b3 is: |
less than 0
equal to 0
greater than 0
options B and C
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20 |
If x > y, then (x - y)(x + y) is : |
equal to (<i>x</i>-<i>y</i>)(<i>x</i>-<i>y</i>)
less than (<i>x</i>-<i>y</i>(<i>x</i>-<i>y</i>)
greater than (<i>x</i>-<i>y</i>)(<i>x</i>-<i>y</i>)
options A and C
|