question: The average of first 12 even numbers is?
Options:
(A) 19
(B) 18
(C) 16
(D) 13
(E) 17
answer: Stream of consciousness: Sum of 12 even numbers = 12 * 13 = 156
Average = 156/12 = 13 The answer is (D).

q: Rs. 1400 is divided into three parts A, B and C. How much A is more than C if their ratio is 1/3:1/3:1/6?
Options:
(A) 300
(B) 992
(C) 772
(D) 552
(E) 280
a: Stream of consciousness: 1/3:1/3:1/6 = 2:2:1
1/5*1400 = 280
560-280 = 280 The answer is (E).

question: A certain league has three divisions. The respective divisions had 10, 12 and 15 teams qualify for the playoffs. Each division held its own double-elimination tournament -- where a team is eliminated from the tournament upon losing two games -- in order to determine its champion. The four division champions then played in a single-elimination tournament -- where a team is eliminated upon losing one game -- in order to determine the overall league champion. Assuming that there were no ties and no forfeits, what is the maximum number of games that could have been played in order to determine the overall league champion?
Options:
(A) 70
(B) 72
(C) 73
(D) 78
(E) 80
answer: Stream of consciousness: Overall, there can be 73 minuses. Tus, it is The answer is (C).

q: Find a a prime number from the options below.
Options:
(A) 86
(B) 87
(C) 88
(D) 89
(E) 90
a: Stream of consciousness: Clearly, 89 is a prime number. The answer is (D).

question: Which of the options is a two-digit number, which has a unit's digit that exceeds its ten's digit by 4 and the product of the given number and the sum of its digits is equal to 208.
Options:
(A) 15
(B) 37
(C) 55
(D) 26
(E) 73
answer: Stream of consciousness: Using the elimination method the option that fits this description is 26
6-2 = 4 (unit's digit that exceeds its ten's digit by 3)
26*8 = 208 (the product of the given number and the sum of its digits is equal to 175) The answer is (D).

question: A shipment of 8 TV sets contains 5 black and white sets and 3 color sets. If 2 TV sets are to be chosen at random from this shipment, what is the probability that at least 1 of the 2 sets chosen will be a black and white set?
Options:
(A) 1/7
(B) 1/4
(C) 5/14
(D) 25/28
(E) 13/28
answer:
Stream of consciousness: 3/8 * 2/7 = 6/56
1-(6/56) = 50/56 = 25/28 The answer is (D).