Rationale: 30 Seconds
Distance travelled = 140 + 360m = 500m
Speed = 60 * 5/8 = 50/3m
Time = 500 * 3/50 = 30 Seconds
The answer: (A)
Question: A bullet train 140 m long is running at 60 kmph. In how much time will it pass a platform 360 m long?
Options:
(A) 30 Seconds
(B) 22 Seconds
(C) 41 Seconds
(D) 24 Seconds
(E) 29 Seconds
Reasoning: S = (90 + 42)/2 = 66 kmph
Ans: (E)
Question: The speed of a car is 90 km in the first hour and 42 km in the second hour. What is the average speed of the car?
Options:
(A) 89 kmph
(B) 92 kmph
(C) 75 kmph
(D) 65 kmph
(E) 66 kmph
Rationale: (555 + 445) * 2 * 110 + 30 = 220000 + 30 = 220030
The answer: (E)
Question: A no. when divided by the sum of 555 and 445 gives 2times their difference as quotient & 30 as remainder. Find the no. is?
Options:
(A) 124345
(B) 234545
(C) 165767
(D) 144656
(E) 220030
Reasoning: (600*3*4)/100 = 72
600 + 72 = 672
Ans: (A)
Question: Rs.600 amounts to Rs.900 in 3 years at simple interest. If the interest is increased by 4%, it would amount to how much?
Options:
(A) 672
(B) 246
(C) 258
(D) 856
(E) 653
Rationale: Cost price of article = 48$
% of overhead cost = 30
Net profit = 12 $
We need to calculate % markup
Net profit as % of cost price = (12/48)*100 = 25%
Total markup should be = 25 + 30 = 55%
The answer: (E)
Question: The purchase price of an article is $48. In order to include 30% of cost for overhead and to provide $12 of net profit, the markup should be
Options:
(A) 15%
(B) 25%
(C) 35%
(D) 40%
(E) 55%
Rationale: In this series, each number is repeated, then 13 is subtracted to arrive at the next number.
The answer: (C)
Question: Look at this series: 53, 53, 40, 40, 27, 27, ... What number should come next?
Options:
(A) 12
(B) 15
(C) 14
(D) 18
(E) 17