q: The average of fifteen results is 593 and that of the first fourteen is 594. The fifteenth result is?
Options:
(A) 575
(B) 602
(C) 579
(D) 586
(E) 592
a: Stream of consciousness: 15 * 593 14 * 594 = 579 The answer is (C).

question: The edges of cuboid are 4 cm; 5 cm and 6 cm. Find its surface area?
Options:
(A) 228
(B) 148
(C) 992
(D) 772
(E) 222
answer: Stream of consciousness: 2(4*5 + 5*6 + 4*6) = 148 The answer is (B).

q: The volume of a certain substance is always directly proportional to its weight. If 48 cubic inches of the substance weigh 112 ounces, what is the volume, in cubic inches, of 56 ounces of this substance?
Options:
(A) 27
(B) 36
(C) 42
(D) 24
(E) 147
a: Stream of consciousness: 112 ounces of a substance has a volume of 48 cubic inches
56 ounces of a substance has a volume of (48/112)*56 = 24 cubic inches The answer is (D).

question: A 200 meter long train crosses a man standing on the platform in 9 sec. What is the speed of the train?
Options:
(A) 228
(B) 108
(C) 1266
(D) 188
(E) 80
answer: Stream of consciousness: S = 200/9 * 18/5 = 80 kmph The answer is (E).

q: A train 240 m in length crosses a telegraph post in 16 seconds. The speed of the train is?
Options:
(A) 22
(B) 71
(C) 54
(D) 77
(E) 99
a: Stream of consciousness: S = 240/16 * 18/5 = 54 kmph The answer is (C).

q: A light has a rating of 110 watts, it is replaced with a new light that has 30% higher wattage. How many watts does the new light have?
Options:
(A) 143
(B) 145
(C) 156
(D) 134
(E) 100
a:
Stream of consciousness: Final number = Initial number + 30%(original number) = 110 + 30%(110) = 110 + 33 = 143. The answer is (A).