q: Two trains are moving at 80 kmph and 70 kmph in opposite directions. Their lengths are 150 m and 100 m respectively. The time they will take to pass each other completely is?
Options:
(A) 4 sec
(B) 5 sec
(C) 6 sec
(D) 7 sec
(E) 8 sec
a: Stream of consciousness: 70 + 80 = 150 * 5/18 = 125/3 mps
D = 150 + 100 = 250 m
T = 250 * 3/125 = 6 se The answer is (C).
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q: The number N is 5,H64, where H represents the hundred's digit. If N is divisible by 4, what is the value of H?
Options:
(A) 0
(B) 1
(C) 2
(D) 5
(E) All the above value
a: Stream of consciousness: If the number is divisible by 4, the last two digits must be divisible by 4. All the values yields such a number. The answer is (E).
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q: How much is 80% of 40 is greater than 4/5 of 15?
Options:
(A) 12
(B) 20
(C) 18
(D) 12
(E) 81
a:

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: (80/100) * 40 â€“ (4/5) * 15
32 - 12 = 20 The answer is (B).
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