q: If Rs.7500 are borrowed at C.I at the rate of 4% per annum, then after 3 years the amount to be paid is?
Options:
(A) 3377
(B) 2688
(C) 2688
(D) 8436
(E) 1268
a: Stream of consciousness: A = 7500(26/25)^3 = 8436 The answer is (D).

question: In e is a positive integer smaller than 200 and (14e)/60 is an integer, then e has how many different positive prime factors?
Options:
(A) 2
(B) 3
(C) 5
(D) 6
(E) 8
answer: Stream of consciousness: 7e/30 tells us that e is a factor of 30, which has 2, 3, and 5 as its prime factors. Each of them is distinct. Moreover, all multiples of 30 less than 200 can be derived by multiplying these prime factors alone. Thus, number of different prime factors is 3. The answer is (B).

q: A cricket bat is sold for $850, making a profit of $225. The profit percentage would be
Options:
(A) 24%
(B) 25%
(C) 30%
(D) 36%
(E) 40%
a: Stream of consciousness: 225/(850 - 225) = 225/625 = 9/25 bit more than 33%. The answer is (D).

question: A train 250 m long running at 72 kmph crosses a platform in 30 sec. What is the length of the platform?
Options:
(A) 350m
(B) 200m
(C) 250m
(D) 270m
(E) 300 m
answer: Stream of consciousness: D = 72 * 5/18 = 30 = 600 250 = 350m The answer is (A).

q: The average age of applicants for a new job is 30, with a standard deviation of 8. The hiring manager is only willing to accept applicants whose age is within one standard deviation of the average age. Assuming that all applicants' ages are integers and that the endpoints of the range are included, what is the maximum number of different ages of the applicants?
Options:
(A) 8
(B) 16
(C) 17
(D) 18
(E) 34
a: Stream of consciousness: Minimum age = Average - 1 Standard deviation = 30 - 8 = 22
Maximum age = average + 1 Standard deviation = 30+ 8 = 38
Maximum number of different ages of the applicants = 38 - 22 + 1 = 17 The answer is (C).

q: A and B complete a work in 9 days. A alone can do it in 18 days. If both together can do the work in how many days?
Options:
(A) 6 days
(B) 8 days
(C) 5 days
(D) 7 days
(E) 15 days
a:
Stream of consciousness: 1/9 + 1/18 = 1/6
6/1 = 6 days The answer is (A).