q: Express 45 mps in kmph?
Options:
(A) 170
(B) 160
(C) 162
(D) 130
(E) 122
a: 45 * 18/5 = 162 kmph The answer is (C).
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q: A train of 24 carriages, each of 60 meters length, when an engine also of 60 meters length is running at a speed of 60 kmph. In what time will the train cross a bridge 1.5 km long?
Options:
(A) 5 mins
(B) 3 mins
(C) 7 mins
(D) 9 mins
(E) 2 mins
a: D = 25 * 60 + 1500 = 3000 m
T = 3000/60 * 18/5 = 180 sec = 3 mins The answer is (B).
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q: A certain league has three divisions. The respective divisions had 8, 10, and 11 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)  51
(B)  52
(C)  54
(D)  56
(E)  57
a: Overall, there can be 57 minuses. Tus, it is The answer is (E).
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q: Find the wrong number below mentioned series
17, 600,6000,550,750
Options:
(A) 600
(B) 6000
(C) 17
(D) 550
(E) 750
a:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
17 is the only prime number or odd number in the series. The answer is (C).
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