Symbols
Question 1

For all nonnegative numbers a, let  *a   be defined by   .

If *a = 2, what is the value of a?

2
4
16
256

Question 2

Let a !! b be defined as ,

where b 0. What is the value of 1 !! 2 ?

1
1.5
2
2.5

Question 3

Let # be defined by x # y = . If x # 3 = a, y # 3 = b, and x + y = 3, what is the value of a multiplied by b ?

6
9
27
cannot be determined

Question 4

For all positive integers m and n, let m " n be defined as the whole remainder where m is divided by n. If 6 " n = 1, what is the value of n?

1
4
5
6

Question 5

If 12 out of 20 problems on a test were correct, what percent of all problems are wrong?

12%
40%
60%
66%

Question 6

For all integers I greater than 1
"I" = + I (I) = - I.
What is the value of "4" - (2)

2
4
6
8

Question 7

If two middle digits of a number 1234 are interchanged, the resulting number is

9 lesser than 123
90 greater than 1234
900 more than 1234
90 less than 1234

Question 8

3, 4, 7, 11 ...
Find the eighth term in this sequence.

13
18
29
76

Question 9

If , then x =

0
15
25
95

Question 10

90
900
9,000
90,000

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