Question: Find the wrong number below mentioned series
13,60,100,500,850
Options:
(A) 13
(B) 60
(C) 100
(D) 500
(E) 850
Ans: (A)
CoT: 13 is the only prime number or odd number in the series.
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Question: A train 540 meters long is running with a speed of 54 kmph. The time taken by it to cross a tunnel 180 meters long is?
Options:
(A) 18 sec
(B) 77 sec
(C) 48 sec
(D) 28 sec
(E) 12 sec
Ans: (C)
CoT: D = 540 + 180 = 720
S = 54 * 5/18 = 15 mps
T = 720/15 = 48 se
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Question: What should come in place of the question mark (?) in the following equation?
12400 + 6899 = 610+ ?
Options:
(A) 12345
(B) 56894
(C) 18689
(D) 23478
(E) 94561
Ans: (C)
CoT: 12400 + 6899 = 610+ ?
12400 + 6899 610 = 18689
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