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Math 002

1: If a certain number is doubled and the result is increased by 7, the number obtained is 19. What is the original number?

21
8
12.5
2.5
6

2: If u is an even integer, which of the following must be an odd integer?

5u-2
u-4
3(u+1)
u/3
u^2

3: For positive integer values of xT, define x to be the sum of the integers from 1 to x, inclusive. For example, 3x = 1 + 2 + 3 = 6. If 10x - 9T = Ox, and O is a positive integer, what is the value of O?

11
14
8
4
34

4: If the average (arithmetic mean) of 8, 12, 14 and Q is 18, then Q = ___?

38
22
18
21
30

5: What is 18 percent of 5/19 of 300?

88
6.7
14.2
36.4
145

6: If w+4 is a positive integer, then w must be

odd
even
positive
less than 4
greater than -4

7: Three consecutive integers are listed in increasing order. If their sum is 102, what is the second integer in the list?

18
34
32
46
6

8: Charley has a collection of 110 bugs. If 60 percent of his bugs are beetles, and the rest are flies, how many flies does he have?

44
22
60
37
9

9: Let's assume there are two types of balls: red ones cost $3, and blue ones cost $5. If 50 balls are sold for a total of $230, how many red balls are sold?

15
22
35
17
10

10: A doll collection is owned by two nuns and a priest, each of whom has an equal share. If one of the nuns gives one sixth of her share to the priest, and the other nun keeps one third of her share and gives the rest to the priest, what fraction of the doll collection will the priest own?

11/18
3/18
19/18
3/5
1/3

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