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3
|
Is x a factor of 24?
(1)3x is a factor of 48
(2)5x is a factor of 60
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9
|
If f(x)=ax+b，what is the value of f(3)？
(1)f(-2)+f(3)=0
(2)f(2)+f(-1)=0
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12
|
Is a five-digit number “ababa” divisible by 3?
(1)a is divisible by 3
(2)b is divisible by 3
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16
|
A person starts at 6:30, the whole distance is 500km, and stops at half the distance. What time does this person arrive at the destination?
(1)It's 10:30 at half way
(2)50 km/h for the remaining half of the journey
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17
|
x is a two-digit number, and the unites digit of x is greater than 1. What is the unites digit of x?
(1). the units digit of $$x^2$$ is the same as the units digit of x
(2). the units digit of $$x^3$$ is the same as the units digit of x
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18
|
x and y are both greater than 0，what is the value of √x-√y？
(1). √x-√y=2*4√xy
(2). x^2-y^2=2xy
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22
|
Is the quadrilateral a square?
(1). the diagonals of the quadrilateral are perpendicular
(2). the diagonals of the quadrilateral are equal
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23
|
s, r, t are integers，is t/(s^2) an integer?
(1). t/sr is an integer
(2). r/s is an integer
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26
|
Insert two symbols “+” in 1,2,3,4,5 to form the number X, and the two symbols must be separated by at least one number, for example: insert a symbol between 2 and 3, and a symbol between 4 and 5, X=12+34+5=51, is X even?
(1). X is a three-digit number
(2). there is a symbol between 1 and 2
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29
|
DS：∣2X-Y∣=∣2Y-X∣?
(1). X=Y
(2). Y>0
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32
|
A sequence 1,2,3,4,5,11, x, and x is a positive integer, is x≥4?
(1). The median of the sequence is 4
(2). x ≥ the median of the sequence
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|
37
|
ABCD is a square. According to the picture below, what is the area of EMHN?
(1) Perimeter of ABCD is 48
(2) Area of ABCD is 144
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45
|
If n, m, and k are positive integers, and $$\frac { 9 } { 10 } < \frac { 1 } { n } + \frac { 1 } { m } + \frac { 1 } { k } < 1$$, is n+m+k >11?
(1)n=2 and m=3
(2)k=7
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|
47
|
Is positive integer x a sum of squares of three different positive integers?
(1)x < 29
(2)x is divisible by 7
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|
50
|
If x and y are all real numbers，is x > 1？
1.x*$$\sqrt{y}$$ >1
2.$$\sqrt{x}$$*y < 1
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|
52
|
Is 5 a factor of n?
(1)the remainder is 1 when n is divided by 4
(2)the remainder is 4 when n is divided by 7
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|
56
|
If a, b and c are three integers, is at least one of them even?
(1)a+b = even
(2)a+c = even
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|
57
|
Is n a multiple of 25?
(1)n is a multiple of 5
(2)n is the square of an integer
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|
59
|
Is (x^2-y)=y？
(1)y(x^2-y)=y^2
(2)xy≠0
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|
60
|
If △ABC is an isosceles triangle, what is the ratio of the height to base?
(1)The three sides of △ABC are equal
(2)One of the angles of △ABC is 60°
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