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PSAT Math Practice #2
Question 1:
In the figure above, O is the center of circle C and ABO is a right triangle. If h is the hypotenuse of triangle ABO, the circumference of circle C is:
(√2)¶h
¶h
h/(√2)¶
h
^{2}
/(√2)
2¶h
Question 2: If a
^{2}
= 2 and b(a + b) = 6, (a + 2b)
^{2}
=
20
22
24
26
28
Question 3: If the sum of two numbers is 150 and their difference is 46, what is the lower of the two numbers?
48
52
54
58
62
Question 4: The product of two numbers is 120. What are the two numbers if neither of them is divisible by 10, and their sum is not equal to 29?
5 and 24
10 and 12
8 and 15
6 and 18
4 and 32
Question 5: If a is a real number, a ≠ 1 and a ≠ -1, what is the average of
1/(a - 1) and 1/(a + 1)?
2/(a
^{2}
- 1)
a/(a
^{2}
- 1)
2(a
^{2}
- 1)
1/a
(a - 1)(a + 1)