190124
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N is an integer. Is $$\frac{N}{225}$$ a terminating decimal?
1: N can be divided by 3.
2: N can be divided by 5.
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190124
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Is $$\frac{5m}{3n}$$ an integer? m,n are integers.
1: m is a multiple of 3.
2: n is a multiple of 5.
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190124
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Is x > 5?
1:$$x^{2}$$ > 25
2:2x+7 > 0
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190124
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The average of five integers is 24. How many of these five numbers are greater than 24?
1: The sum of the two maximum numbers is 59.
2: The sum of the two minimum numbers is 39.
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190124 还原机经选题: 文字题&几何
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In the xy coordinate system, two lines,$$l_1$$ and $$l_2$$, are neither parallel to the x-axis nor to the y-axis. Do $$l_1$$ and $$l_2$$ intersect?
1: The slope of one line is twice that of the other
2: One line passes through (0,0) and the other passes through (2,0).
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190124
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What is the unit digit number of $$2^{k}$$ ?
1: k can be divided by 10.
2: k can be divided by 4.
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190124
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Is the average of the sequence greater than the median?
1: 60% of the number in the sequence is less than the average.
2: The average of the sequence is greater than the average of the minimum and maximum.
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190124
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All numbers in a set are positive. The numbers in the set can be expressed as n/n+1. n is a natural number. Is there at least one number in the collection greater than $$\frac{19}{24}$$?
1: $$\frac{5}{6}$$ is in the set.
2: There are five different numbers in the collection.
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190124
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The price of a commodity is three times the gross profit. The cost of this product is $20. What is the price of this product?
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190124
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$$\frac{1}{(2n-1)!}$$ - $$\frac{1}{(2n+1)!}$$=$$\frac{an^{2}+bn+c}{(2n+1)!}$$,a+b+c=?
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190124
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x=3 - $$\sqrt{2}$$ is the solution of which of the following equations?
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190124
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Which of the following functions has no intersection with the x axis?
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190124 还原机经选题: 文字题&几何
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A shop sold 10 sets of TV in a week. What is the median of the daily sales?
1: At least 1 TV set was sold every day.
2: At most two TVs were sold every day.
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190124
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Is a even?
1:$$a^{b}$$+b is even.
2:$$b^{a}$$+a is even.
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190124
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500 students chose courses. Students who didn't take a single course accounted for 1% of the total. Students who took 1, 2, 3 and 4 courses accounted for 50%, 30%, 10% and 9% of the total number of students respectively. What is the median of the number of the courses the students chose?
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190124
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There are 10 numbers in a set. What is the median of these 10 numbers?
1: The average is 5.
2: The range is 14
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190124
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$$y_1$$=$$x^{2}$$-3,$$y_2$$=2x+5,is $$y_1$$ > $$y_2$$ ?
1:x > -2
2:x < 4
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190124
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∠ABM=45°, EF//MN. Quadrilateral ABCD is rectangular. AB=?
1:AE=3
2:BF=15
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190124 还原机经选题: 文字题&几何
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The equation of line l isy=ax+b . Does l go through the fourth quadrant?
1:a > 0
2:b < 0
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