q: What is the probability that Company W's advertisement will be one of the first two be shown during the first commercial break?
Options:
(A) 1/ 225
(B) 1 / 30
(C) 1 /15
(D) 2 / 15
(E) 4 /15
a: Stream of consciousness: W 1/15 + (14/15) * 1/14 = 2/15 The answer is (D).
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q: The floor of a rectangular room is 18 m long and 12 m wide. The room is surrounded by a veranda of width 2 m on all its sides. The area of the veranda is :
Options:
(A) 124 m2
(B) 126 m2
(C) 136 m2
(D) 158 m2
(E) None of these
a: Stream of consciousness: Area of the outer rectangle = 22 16 = 352 m2
Area of the inner rectangle = 18 12 = 216 m2
Required area = (352 216) = 136 m2 The answer is (C).
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q: The edge of a cube is 4a cm. Find its surface?
Options:
(A) 104a2 cm2
(B) 64a2 cm2
(C) 96a2 cm2
(D) 84a2 cm2
(E) 56a2 cm2
a:
Stream of consciousness: 6a2 = 6 * 4a * 4a = 96a2 The answer is (C).
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