q: A train 540 meters long is running with a speed of 54 kmph. The time taken by it to cross a tunnel 180 meters long is?
Options:
(A) 17 sec
(B) 14 sec
(C) 48 sec
(D) 87 sec
(E) 25 sec
a: Stream of consciousness: D = 540 + 180 = 720
S = 54 * 5/18 = 15 mps
T = 720/15 = 48 se The answer is (C).

question: What is the sum of the local values of the digits 2, 3, 4, 5 in the number 2345?
Options:
(A) 2345
(B) 4500
(C) 5000
(D) 6000
(E) 7000
answer: Stream of consciousness: 2000 + 300 + 40 + 5 = 2345 The answer is (A).

q: A marble shop contains 5 blue marbles, 5 red marbles, and 5 green marbles. If 2 marbles are purchased at random from the shop, what is the probability that the 2 marbles will be of the red?
Options:
(A) 5/15
(B) 2/21
(C) 20/15
(D) 5/210
(E) 4/14
a: Stream of consciousness: Of the 15 marbles we are wanting red:
Probability of choosing 1st red marble: 5/15
Probability of Choosing 2nd red marble: 4/14
Multiply and you get 20/210 simplified to 2/21 The answer is (B).

question: In how many different ways can the letters of the word 'PREPTY' be arranged?
Options:
(A) 230
(B) 240
(C) 260
(D) 280
(E) 360
answer: Stream of consciousness: Number of ways = 61/21 6X5X4X3X2X1 - 360 The answer is (E).

q: Find the odd man out
4, 10, 22, 40, 84, 94
Options:
(A) 22
(B) 40
(C) 94
(D) 84
(E) 10
a: Stream of consciousness: Differnce is multiple of 6
4 and 10 diff is 6
10 and 22 diff is 12
22 and 40 diff is 18
40+24 = 64 but in series it is mentioned as 84
64+30 = 94 The answer is (D).

q: A train 210 meters long is running with a speed of 54 kmph. The time taken by it to cross a tunnel 120 meters long is?
Options:
(A) 29
(B) 22
(C) 48
(D) 99
(E) 11
a:
Stream of consciousness: D = 210 + 120 = 330
S = 54 * 5/18 = 15 mps
T = 330/15 = 22 sec The answer is (B).