question: The number N is H,284, where H represents the ten's digit. If N is divisible by 6, what is the value of H?
Options:
(A) 1
(B) 2
(C) 3
(D) 5
(E) 8
answer: Stream of consciousness: If the number is divisible by 6, then the sum of the digits must also be divisible by both 3 and 2. Only 1 yields such a number. The answer is (A).

q: A pipe can fill a cistern in 20 minutes whereas the cistern when fill can be emptied by a leak in 70 minutes. When both pipes are opened, find when the cistern will be full?
Options:
(A) 17 minutes
(B) 87 minutes
(C) 70 minutes
(D) 28 minutes
(E) 11 minutes
a: Stream of consciousness: 1/20 - 1/70 = 1/28
28 minutes The answer is (D).

question: 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: Stream of consciousness: Other parts are equal to 300. The answer is (E).

q: Find the wrong number below mentioned series
13,60,100,500,850
Options:
(A) 13
(B) 60
(C) 100
(D) 500
(E) 850
a: Stream of consciousness: 13 is the only prime number or odd number in the series. The answer is (A).

question: Look at this series: 3, 4, 7, 8, 11, 12, ... What number should come next?
Options:
(A) 15
(B) 14
(C) 17
(D) 12
(E) 19
answer: Stream of consciousness: This alternating addition series begins with 3; then 1 is added to give 4; then 3 is added to give 7; then 1 is added, and so on. The answer is (A).

question: In what time will a railway train 60 m long moving at the rate of 36 kmph pass a telegraph post on its way?
Options:
(A) 10 sec
(B) 8 sec
(C) 5 sec
(D) 6 sec
(E) 11 sec
answer:
Stream of consciousness: T = 60/36 * 18/5 = 6 sec The answer is (D).