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Dare to Compare

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Mathematics, 8th grade
Image pertaining to question 1
1. The table above shows the numbers of boys and girls in four classes. Which two classes have the same ratio of boys to girls?
1 and 2
1 and 3
2 and 3
2 and 4
2. 2a2 x 3a =
5a2
5a3
6a2
6a3
Image pertaining to question 3
3. What is the measure of angle C in the triangle above?
45°
55°
65°
145°
4. In a sequence of starts and stops, an elevator travels from the first floor to the fifth floor and then to the second floor. From there, the elevator travels to the fourth floor and then to the third floor. If the floors are 3 m apart, how far has the elevator traveled?
18 m
27 m
30 m
45 m
Image pertaining to question 5
5. What fraction of the circle is shaded?
Between 0 and 1/4
Between 1/4 and 1/2
Between 1/2 and 3/4
Between 3/4 and 1
Image pertaining to question 6
6. Two points M and N are shown in the figure above. John is looking for a point P such that MNP is an isosceles triangle. Which of these points could be point P?
(3,5)
(3,2)
(1,5)
(5,1)
Image pertaining to question 7
7. The spinner is for Steve’s new game. Out of 600 spins, approximately how many times should he expect the arrow to land on the red sector?
30
40
50
60
8. There were 90 employees in a company last year. This year the number of employees increased by 10 percent. How many employees are in the company this year?
9
81
91
99
100
9. There are 10 red, 8 blue, and 4 white buttons in a bag. What is the chance of taking out either a blue button or a white button?
4/22
8/22
10/22
12/22
10. From a batch of 3000 light bulbs, 100 were selected at random and tested. If 5 of the light bulbs in the sample were found to be defective, about how many defective light bulbs would be expected in the entire batch?
15
60
150
300
600