sanju09 said – Wed, 20 May 2009 14:37:27 -0000 ( Link )
Dear readers,
The following 15 Problem Solving questions are posted for their answers, and if needed, their explanations as well. Since these questions need you stick to your basics only, it could prove to be a nice warm-up exercise both for the beginners and for the (bunk)ers. So it will be better if you first take your 30 minutes to answer these questions, for your self-check.
Q.1: If A $ B = A * B – ( A + B), what is 3 $ (2 $ 1)?
A. -5
B. -3
C. 0
D. 1
E. 4
Q.2: How many numbers less than 1000 are divisible by 3?
A. 300
B. 310
C. 311
D. 333
E. 500
Q.3: If a ^ b = c ^ d, which of the following is not necessarily true?
A. a ^ b – c ^ d = 0
B. a ^ b + c ^ d = 2 * (a ^ b)
C. (a ^ b)/(c ^ d) = 1
D. a = c
E. a ^ b * c ^ d = a ^ (2 * b)
Q.4: Which of the following lines does not intersect y = 5 x + 2?
A. -5x + 2y = 4
B. -2x + 5y = -3
C. 10x – y = 1
D. 3x + y = 17
E. 5x – y = -29
Q.5: A regular polygon has 9 sides. What is the degree measure of the angle, within the polygon, between any two sides?
A. 60
B. 90
C. 120
D. 140
E. 165
Q.6: A cubic box, X, has sides of length n. Another cubic box, Y, has sides of length 2 n. How many boxes X could fit into a single box Y?
A. 2
B. 4
C. 8
D. 16
E. 32
Q.7: A number is called “round” if it contains at least one zero as a digit. How many three-digit numbers are “round?”
A. 153
B. 171
C. 178
D. 179
E. 215
Q.8: How many ways can Pete, Mary, Sue, and Joe stand in a line if Joe and Sue cannot stand next to each other?
A. 4
B. 6
C. 12
D. 16
E. 18
Q.9: A square, X, has sides of length n. Another square, Y, has sides of length 1.5 n. How many X can fit into a single Y?
A. 1
B. 1.5
C. 2
D. 2.25
E. 4
Q.10: A triangle has sides of length 7, 11, and X. Which of the following cannot be X?
A. 2
B. 4
C. 8
D. 12
E. 18
Q.11: If |a| < |b|, and a > b, which of the following is necessarily true?
A. |a + b| > |b| + |a|
B. |a + b| < a – b
C. |a| + |b| > 2|b|
D. |a – b| > a + b
E. |a| – |b| > |a – b|
Q.12: Six children sit at a circular table. In how many orders can they sit at the table?
A. 6
B. 18
C. 64
D. 118
E. 120
Q.13: If a two-sided coin is flipped three times, what is the probability that at least one head will show up?
A. 1/8
B. 3/8
C. 1/2
D. 2/3
E. 7/8
Q.14: If m & n = (m + n)^(m – n), what is 2 & (2 & 2)?
A. 2
B. 3
C. 4
D. 6
E. 8
Q.15: Which of the following cannot be formed from any combination of two pennies, three nickles, one dime, and two quarters?
A. $0.03
B. $0.54
C. $0.56
D. $0.75
E. $0.78
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