question: What is the units digit of the expression 14^719^4?
Options:
(A) 0
(B) 3
(C) 4
(D) 6
(E) 8
answer: Stream of consciousness: I think answer on this one should be E too. Since we know that 14^7>19^4, as Will said one should always check if the number is positiv The answer is (E).

q: Find 95 97
Options:
(A) 92/198
(B) 92/12
(C) 92/13
(D) 92/10
(E) 92/15
a: Stream of consciousness: Here both numbers are less than 100. So they are deficient of - 5 and - 3 compared with 100. So The answer is (E).

question: A train 510 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?
Options:
(A) 40
(B) 52
(C) 26
(D) 21
(E) 14
answer: Stream of consciousness: Speed = 45 * 5/18 = 25/2 m/sec
Total distance covered = 510 + 140 = 650 m
Required time = 650 * 2/25 = 52 sec The answer is (B).

q: The volume of a certain substance is always directly proportional to its weight. If 48 cubic inches of the substance weigh 114 ounces, what is the volume, in cubic inches, of 63 ounces of this substance?
Options:
(A) 27
(B) 26
(C) 42
(D) 64
(E) 147
a: Stream of consciousness: 112 ounces of a substance has a volume of 48 cubic inches
63 ounces of a substance has a volume of (48/114)*63 = 26 cubic inches The answer is (B).

question: The average of first 12 even numbers is?
Options:
(A) 10
(B) 11
(C) 12
(D) 13
(E) 14
answer: Stream of consciousness: Sum of 12 even numbers = 12 * 13 = 156
Average = 156/13 = 13 The answer is (D).

question: The average of 9 results is 50. The average of first four results is 52 and average of last four results is 49 . what is the fifth result?
Options:
(A) 22
(B) 27
(C) 29
(D) 46
(E) 92
answer:
Stream of consciousness: Total of results = 50 x 9 = 450
Total of first four results = 52 x 4 = 208
Total of Last four results = 49 x 4 = 196
Hence the fifth result = 450 - (208 + 196) = 46 The answer is (D).