Question: What is the are of an equilateral triangle of side 2 cm?
Options:
(A) 3
(B) 649
(C) 644
(D) 643
(E) 642
Answer: Area of an equilateral triangle = 3/4 S2
If S = 2, Area of triangle = 3/4 * 2 * 2 = 3 cm2;
The answer is (A).

Question: A train 100 meters long completely crosses a 300 meters long bridge in 45 seconds. What is the speed of the train is?
Options:
(A) 32
(B) 545
(C) 88
(D) 66
(E) 09
Answer: S = (100 + 300)/45 = 400/45 * 18/5 = 32
The answer is (A).

Question: The volume of a certain substance is always directly proportional to its weight. If 48 cubic inches of the substance weigh 114 ounces, what is the volume, in cubic inches, of 63 ounces of this substance?
Options:
(A) 27
(B) 26
(C) 42
(D) 64
(E) 147
Answer: 112 ounces of a substance has a volume of 48 cubic inches
63 ounces of a substance has a volume of (48/114)*63 = 26 cubic inches
The answer is (B).

Question: What should come in the place of the question mark(?) in the following equation?
69012 20167 + (51246 6) = ?
Options:
(A) 57385
(B) 57286
(C) 57476
(D) 57368
(E) None of these
Answer:
? = 48845 + 512466 = 48845 + 8541 = 57386
The answer is (E).