In a school of 850 boys, 44% of Muslims, 28% Hindus, 10% Sikhs and the remaining of other communities. How many belonged to the other communities?
Options:
(A) 176
(B) 179
(C) 153
(D) 167
(E) 107
Answer and stream of consciousness: (C)
Stream of consciousness: 44 + 28 + 10 = 82%
100 82 = 18%
850 * 18/100 = 153

What approximate value should come in place of question mark (?) in the following equation
287.532 + 1894.029 857.48 = 743.095 + ?
Options:
(A) 870
(B) 790
(C) 580
(D) 770
(E) 890
Answer and stream of consciousness: (C)
Stream of consciousness: ? = 285 + 1895 855 745 or, ? = 580

A bullet train 140 m long is running at 60 kmph. In how much time will it pass a platform 160 m long?
Options:
(A) 34 Seconds
(B) 18 Seconds
(C) 41 Seconds
(D) 24 Seconds
(E) 29 Seconds
Answer and stream of consciousness: (B)
Stream of consciousness: Distance travelled = 140 + 160m = 300m
Speed = 60 * 5/8 = 50/3m
Time = 300 * 3/50 = 18 Seconds

The average of first four prime numbers greater than 20 is?
Options:
(A) 10
(B) 20
(C) 30
(D) 40
(E) 50
Answer and stream of consciousness:
(C)
Stream of consciousness: 23 + 29 + 31 + 37 = 120/4 = 30