question: The speed of a car is 80 km in the first hour and 60 km in the second hour. What is the average speed of the car?
Options:
(A) 70 kmph
(B) 92 kmph
(C) 75 kmph
(D) 65 kmph
(E) 77 kmph
answer: Stream of consciousness: S = (80 + 60)/2 = 70 kmph The answer is (A).

q: A shipment of 8 TV sets contains 4 black and white sets and 4 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) 11/14
(C) 5/14
(D) 11/28
(E) 13/28
a: Stream of consciousness: 4/8 * 3/7 = 12/56
1-(12/56) = 44/56 = 11/14 The answer is (B).

question: Which of the options is a two-digit number, which has a unit's digit that exceeds its ten's digit by 6 and the product of the given number and the sum of its digits is equal to 136.
Options:
(A) 82
(B) 93
(C) 39
(D) 28
(E) 17
answer: Stream of consciousness: Using the elimination method the option that fits this description is 17
7-1 = 3 (unit's digit that exceeds its ten's digit by 3)
17*8 = 136 (the product of the given number and the sum of its digits is equal to 175) The answer is (E).

q: The average of first 16 even numbers is?
Options:
(A) 19
(B) 18
(C) 16
(D) 11
(E) 17
a: Stream of consciousness: Sum of 16 even numbers = 16 * 17 = 272
Average = 272/16 = 17 The answer is (E).

question: What is the are of an equilateral triangle of side 4 cm?
Options:
(A) 645
(B) 43
(C) 644
(D) 643
(E) 642
answer: Stream of consciousness: Area of an equilateral triangle = 3/4 S2
If S = 4, Area of triangle = 3/4 * 4 * 4 = 43 cm2; The answer is (B).

question: A train running at the speed of 60 km/hr crosses a pole in 9 sec. What is the length of the train?
Options:
(A) 118
(B) 150
(C) 277
(D) 258
(E) 191
answer:
Stream of consciousness: Speed = 60 * 5/18 = 50/3 m/sec
Length of the train = speed * time = 50/3 * 9 = 150 m The answer is (B).