q: What is the units digit of the expression 14^720^4?
Options:
(A) 8
(B) 3
(C) 4
(D) 6
(E) 0
a: Stream of consciousness: I think answer on this one should be A too. Since we know that 14^7>20^4, as Will said one should always check if the number is positive. The answer is (A).

question: Of the families in City X in 1994, 40 percent owned a personal computer. The number of families in City X owning a computer in 1998 was 30 percent greater than it was in 1994, and the total number of families in City X was 4 percent greater in 1998 than it was in 1994. what percent of the families in City X owned a personal computer in 1998?
Options:
(A) 50%
(B) 52%
(C) 56%
(D) 70%
(E) 74%
answer: Stream of consciousness: Say a 100 families existed in 1994 then the number of families owning a computer in 1994 - 40
Number of families owning computer in 1998 = 40 * 130/100 = 52
Number of families in 1998 = 104
The percentage = 52/104 * 100 = 50%. The answer is (A).

q: The average marks of a Suresh in 10 papers are 80. If the highest and the lowest scores are not considered, the average is 81. If his highest score is 92, find the lowest?
Options:
(A) 55
(B) 60
(C) 62
(D) 52
(E) Cannot be determined
a: Stream of consciousness: Total marks of 10 papers = 80 x 10 = 800
Total marks of 8 papers = 81 x 8 = 648
Total marks of two papers = (800 - 648) = 152
If highest total is 92, then the lowest total is
(152 - 92) = 60. The answer is (B).

question: At 15:00 there were 20 students in the computer lab. At 15:03 and every three minutes after that, 3 students entered the lab. If at 15:10 and every ten minutes after that 7 students left the lab, how many students were in the computer lab at 15:44 ?
Options:
(A) 7
(B) 14
(C) 25
(D) 27
(E) 30
answer: Stream of consciousness: Initial no of students + 3 * (1 + No of possible 3 minute intervals between 15:03 and 15:44) -
8 *(1 + No of possible 10 minute intervals between 15:10 and 15:44)
20 + 3*14 -8 * 4 = 25 The answer is (C).

q: John's grade was 80th percentile of the 100 grades for his class. Of the 60 grades from another class, 20 were higher than John's, and the rest were lower. If no other grade was the same as John's grade, then John's grade was what percentile of the grades of the two classes of two classes combined?
Options:
(A) 72nd
(B) 75th
(C) 83rd
(D) 85th
(E) 94th
a: Stream of consciousness: 72nd/75th/83rd/85th/94th The answer is (B).

q: A printer print a page in 4 second,approx how long time it will take to print 190 page report?
Options:
(A) 12 Min 40 Sec
(B) 14 Min 40 Sec
(C) 16 Min 40 Sec
(D) 18 Min 40 Sec
(E) 11 Min 40 Sec
a:
Stream of consciousness: 1 Page = 4 Sec
30 Page = 120 Sec (2 Min)
190 Page = 12 Min 40 Sec The answer is (A).