Answer: (D)
Question: A train 200 meters long completely crosses a 300 meters long bridge in 45 seconds. What is the speed of the train is?
Options:
(A) 10
(B) 20
(C) 30
(D) 40
(E) 50
[CoT]: [S = (200 + 300)/45 = 500/45 * 18/5 = 40]

Answer: (D)
Question: Sum of the local value and the face value of 4 in the numeral 153489216 is
Options:
(A) 40004
(B) 4004
(C) 4000004
(D) 400004
(E) 44
[CoT]: [(Local value of 4) + (Face value of 4) = (400000 + 4) = 400004]

Answer: (D)
Question: The average of 20 numbers is zero. Of them, at the most, how many may be greater than zero?
Options:
(A) 7
(B) 4
(C) 12
(D) 19
(E) 28
[CoT]: [Average of 20 numbers = 0
Sum of 20 numbers = (0 * 20) = 0
It is quite possible that 19 of these numbers may be positive and if their sum is a, then 20th number is (-a).]

Answer: (E)
Question:
If 40 per cent of a number is added to an other number then it becomes 125 per cent of itself. What will be the ratio of first and second numbers?
Options:
(A) 8 : 5
(B) 5 : 7
(C) 5 : 8
(D) Data inadequate
(E) None of these
[CoT]: [40x100 + y = 125x100 xy = 2017]