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SAT Math
1.
One of the 5 shapes above will be chosen at random. What is the probability that the shape chosen will have an odd side number?
A)
1
5
B)
3
5
C)
1
4
D)
3
2
E)
2
5
2.
A complete cycle of a traffic light takes 60 seconds with light in green for 35 seconds, amber for 5 seconds, and red for 20 seconds. What is the probability that the light will NOT be green?
A)
2
3
B)
1
2
C)
7
12
D)
3
4
E)
5
12
3.
There are 18 socks in a drawer. Among them, 5 are black, 7 are white and 6 are blue. Michael picks one sock from the drawer (without returning it), and it is black. He picks another one (without returning it), and it is white. If he randomly picks the third sock from the drawer, what is the probability that the sock is blue?
A)
3
8
B)
7
16
C)
6
17
D)
1
2
E)
5
16
4.
A spinner shown in the diagram has 7 equal sections. The probability of the pointer falling into each section is the same (Assume the pointer will never fall on a line between two sections). What is the probability that the product of the two numbers that occur in two tries is not a prime?
A)
44
49
B)
39
49
C)
41
49
D)
40
49
E)
3
7
5.
There are two sets of number cards. The first set has number cards 1, 2, 3, 9, and 13 . The second set has number cards 4, 5, 11, and 15 . If one card is randomly selected from each set, what is the probability that the sum of the two numbers on the selected cards is even number?
A)
13
20
B)
3
5
C)
11
20
D)
9
20
E)
1
2
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