Source of problems - www.mba.com - Practice Test 2
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Question 1.
If two of the four expressions x+y, x+5y, x-y, 5x-y are chosen at random, what is the probablity that their product will be of the form x^2 - (by^2) were b is an integer
a) 1/2
b) 1/3
c) 1/4
d) 1/5
e) 1/6
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Question 2.
Which of the following lists the number of points at which a circle can intersect a triangle?
a) 2 and 6 only
b) 2,4 and 6 only
c) 1,2,3 and 6 only
d) 1,2,3,4 and 6 only
e) 1,2,3,4,5 and 6
Answers
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1. Answer is E. My probablity is not too good, but this doesn't seem hard. I got C) - Any probablity tips for easier questions ?
2. Answer is E. Is there a technique or purpose behind this problem ? Or just brute force of drawing various diagrams ? I got it right, just thought it was a rather silly problem.
----------------------------------------------------------------------------
Question 1.
If two of the four expressions x+y, x+5y, x-y, 5x-y are chosen at random, what is the probablity that their product will be of the form x^2 - (by^2) were b is an integer
a) 1/2
b) 1/3
c) 1/4
d) 1/5
e) 1/6
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Question 2.
Which of the following lists the number of points at which a circle can intersect a triangle?
a) 2 and 6 only
b) 2,4 and 6 only
c) 1,2,3 and 6 only
d) 1,2,3,4 and 6 only
e) 1,2,3,4,5 and 6
Answers
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1. Answer is E. My probablity is not too good, but this doesn't seem hard. I got C) - Any probablity tips for easier questions ?
2. Answer is E. Is there a technique or purpose behind this problem ? Or just brute force of drawing various diagrams ? I got it right, just thought it was a rather silly problem.
