It was 7:00 when Bill looked at the clock, he looks at the clock again 30 minutes later. What time is it now?
Options:
(A) 7:30
(B) 7:00
(C) 8:00
(D) 1:28
(E) 2:40
Answer and stream of consciousness: (A)
Stream of consciousness: If it's 7:00 and 30 minutes pass buy, it will be 7:30


How many prime numbers between 1 and 100 are factors of 7150?
Options:
(A) 238
(B) 100
(C) 299
(D) 270
(E) 111
Answer and stream of consciousness: (B)
Stream of consciousness: Ans: 7, 150 = 2×52×11×13
So there are 4 distinct prime numbers that are below 100


A 125 meter long train crosses a man standing on the platform in 5 sec. What is the speed of the train?
Options:
(A) 229
(B) 108
(C) 278
(D) 126
(E) 90
Answer and stream of consciousness: (E)
Stream of consciousness: S = 125/5 * 18/5 = 90 kmph


A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 390 m long?
Options:
(A) 40 sec
(B) 60 sec
(C) 45 sec
(D) 48 sec
(E) 50 sec
Answer and stream of consciousness:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
(B)
Stream of consciousness: Speed = 45 * 5/18 = 25/2 m/sec
Total distance covered = 360 + 140 = 750 m
Required time = 750 * 2/25 = 40 sec