Reasoning: Speed downstream = 50 + 20 = 70 kmph
Speed upstream = 50 - 20 = 30 kmph
Ans: (A)
Question: The speed of a boat in still water is 50kmph and the speed of the current is 20kmph. Find the speed and upstream?
Options:
(A) 30 kmph
(B) 40 kmph
(C) 78 kmph
(D) 15 kmph
(E) 23 kmph
Rationale: 8/14 + 6/x = 1
X = 14 days
The answer: (E)
Question: A can do a piece of work in 14 days. When he had worked for 2 days B joins him. If the complete work was finished in 8 days. In how many days B alone can finish the work?
Options:
(A) 18
(B) 77
(C) 66
(D) 55
(E) 14
Reasoning: Speed = 60*(5/18) m/sec = 50/3 m/sec
Length of Train (Distance) = Speed * Time
(50/3) * 15 = 250 meter
Ans: (E)
Question: A train running at the speed of 60 km/hr crosses a pole in 15 seconds. Find the length of the train.
Options:
(A) 150 m
(B) 145 m
(C) 240 m
(D) 135 m
(E) 250 m
Rationale: Angle traced by the hour hand in 6 hours = (360)/12x 6 = 180.
The answer: (A)
Question: An accurate clock shows 8 o'clock in the morning. Through how may degrees will the hour hand rotate when the clock shows 2 o'clock in the afternoon?
Options:
(A) 180
(B) 345
(C) 234
(D) 488
(E) 234
Reasoning: This is a simple multiplication series. Each number is 3 times greater than the previous number.
Ans: (A)
Question: Look at this series: 0.7, 2.1, ____, 18.9, 56.7, ... What number should fill the blank?
Options:
(A) 6.3
(B) 5.3
(C) 6.2
(D) 6.1
(E) 4.3
Reasoning: 224 + 43 = 267/17 = 12 (Remainder)
Ans: (E)
Question: A no.when divided by 224 gives a remainder 43, what remainder will beobtained by dividingthe same no.17?
Options:
(A) 2
(B) 7
(C) 9
(D) 11
(E) 12