question: The inverse ratio of 9: 2: 1 is?
Options:
(A) 1:9:18
(B) 2:9:18
(C) 2:7:18
(D) 2:13:18
(E) 2:9:15
answer: Stream of consciousness: 1/9: 1/2: 1/1 = 2:9:18 The answer is (B).
--
question: The speed of a train is 90 kmph. What is the distance covered by it in 12 minutes?
Options:
(A) 15
(B) 18
(C) 77
(D) 52
(E) 42
answer: Stream of consciousness: 90 * 12/60 = 18 kmph The answer is (B).
--
question: A motorcyclist goes from Bombay to Pune, a distance of 224 kms at an average of 32 kmph speed. Another man starts from Bombay by car 2 ½ hours after the first, and reaches Pune ½ hour earlier. What is the ratio of the speed of the motorcycle and the car?
Options:
(A) 1:2
(B) 1:5
(C) 4:7
(D) 1:1
(E) 1:8
answer: Stream of consciousness: T = 224/32 = 7 h
T = 7 - 3 = 4
Time Ratio = 7:4
Speed Ratio = 4:7 The answer is (C).
--
question: If Rs.7500 are borrowed at C.I at the rate of 4% per annum, then after 2 years the amount to be paid is?
Options:
(A) 8112
(B) 8000
(C) 8500
(D) 7500
(E) 6500
answer:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Stream of consciousness: A = 7500(26/25)2 = 8112 The answer is (A).
--