q: What should come in place of the question mark (?) in the following equation?
5978 + 6134 + 7014 = ?
Options:
(A) 19226
(B) 16226
(C) 19216
(D) 19126
(E) None of these
a: Stream of consciousness: ? = 5978 + 6134 + 7014 = 19126 The answer is (D).

question: A train 280 m long, running with a speed of 63 km/hr will pass a tree in?
Options:
(A) 15 sec
(B) 16 sec
(C) 18 sec
(D) 20 sec
(E) 22 sec
answer: Stream of consciousness: Speed = 63 * 5/18 = 35/2 m/sec
Time taken = 280 * 2/35 = 16 sec The answer is (B).

q: The average mark obtained by 22 candidates in an examination is 47. The average of the first ten is 55 while the last eleven is 40 .The marks obtained by the 11th candidate is ?
Options:
(A) 22
(B) 44
(C) 49
(D) 68
(E) 76
a: Stream of consciousness: It is clear that 22 x 47 = 10 x 55 + K + 11 x 40 K = 44 The answer is (B).

question: In his room, Dumbo has three trousers. One of them is black, the second is blue, and the third is brown. In his room, he also has four shirts. One of them is black and the other 3 are white. He opens his room in the dark and picks out one shirt and one trouser pair without examining the colour. What is the likelihood that neither the shirt nor the trouser is black?
Options:
(A) 1/12
(B) 1/6
(C) 1/2
(D) 1/4
(E) 1/3
answer: Stream of consciousness: Probability that trouser is not black = 2/3
Probability that shirt is not black = 3/4
Required probability = 2/3 x 3/4 = 1/2 The answer is (C).

q: Calculate the value of n from the below equation: n^310n+20=44
Options:
(A) 1
(B) 5
(C) 3
(D) 2
(E) 4
a: Stream of consciousness: Use elimination method to find the correct option. you find that of all the options when 4 is the correct value for n The answer is (E).

q: If a man can cover 14 metres in one second, how many kilometres can he cover in 3 hours 45 minutes?
Options:
(A) 189km
(B) 195km
(C) 197km
(D) 200km
(E) 205km
a:
Stream of consciousness: 14 m/s = 14 * 18/5 kmph
3 hours 45 minutes = 3 3/4 hours = 15/4 hours
Distance = speed * time = 14 * 18/5 * 15/4 km = 189 km. The answer is (A).