A train running at the speed of 60 km/hr crosses a pole in 3 sec. What is the length of the train?
Options:
(A) 50
(B) 75
(C) 100
(D) 120
(E) 25
Answer and stream of consciousness: (A)
Stream of consciousness: Speed = 60 * 5/18 = 50/3 m/sec
Length of the train = speed * time = 50/3 * 3 = 50 m

Four of the following five parts (a), (b), (c), (d) and (e) are exactly equal. The number of the part which is not equal to the other four parts is your answer.
Options:
(A) 30 14 7 5
(B) 10 3 100 7
(C) 53600
(D) 450 50 50 5 30
(E) 10 3 + 120 2
Answer and stream of consciousness: (E)
Stream of consciousness: Other parts are equal to 300.

Pipes A and B can fill a cistern in 8 and 24 minutes respectively. They are opened an alternate minutes. Find how many minutes, the cistern shall be full?
Options:
(A) 12 min
(B) 6 min
(C) 4 min
(D) 8 min
(E) 10 min
Answer and stream of consciousness: (A)
Stream of consciousness: 1/8 + 1/24 = 1/6
6 * 2 = 12

Rs. 1300 is divided into three parts A, B and C. How much A is more than C if their ratio is 1/2:1/3:1/4?
Options:
(A) 297
(B) 268
(C) 300
(D) 179
(E) 172
Answer and stream of consciousness:
(C)
Stream of consciousness: 1/2:1/3:1/4 = 6:4:3
3/13*1300 = 300