a) 24 km/hr b) 36 km/hr c) 40 km/hr d) 45 km/hr Answer: d Explanation:$$\eqalign{ & {\text{Distance travelled in 14 ...
View QuestionWhat is the speed of a train if it overtakes two persons who are walking in the same direction at the rate of a m/s and (a + 1) m/s and passes them completely in b seconds and (b + 1) seconds respectively?
What is the speed of a train if it overtakes two persons who are walking in the same ...
View QuestionA train B speeding with 120 kmph crosses another train C running in the same direction, in 2 minutes. If the lengths of the trains B and C be 100m and 200m respectively, what is the speed (in kmph) of the train C?
a) 111 kmph b) 123 kmph c) 127 kmph d) 129 kmph Answer: a Explanation: $$\eqalign{ & {\text{Relative speed of the trains }} \cr & {\text{ = ...
View QuestionTwo trains are moving in opposite directions @60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. The time taken by the slower train to cross the faster train in second is?
Two trains are moving in opposite directions @60 km/hr and 90 km/hr. Their lengths are 1.10 km and ...
View QuestionTwo trains A and B start running together from the same point in the same direction, at the speed of 60 kmph and 72 kmph respectively. If the length of each of the trains is 240 meters, how long will it take for B to cross train A?
a) 1 min 12 sec b) 1 min 24 sec c) 2 min 12 sec d) 2 min 24 sec
View QuestionA train 110 meters long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?
a) 5 sec b) 6 sec c) 7 sec d) 10 sec Answer: b Explanation: $$\eqalign{ & {\text{Speed of train ...
View QuestionA 280 meter long train crosses a platform thrice its length in 50 seconds. What is the speed of the train in km/hr?
a) 60.48 b) 64.86 c) 80.64 d) 82.38 Answer: c Explanation:$$\eqalign{ & {\text{Length of train}} = 280 ...
View QuestionA train of length 150 meters takes 40.5 seconds to cross a tunnel of length 300 meters. What is the speed of the train in km/hr?
a) 13.33 b) 26.67 c) 40 d) 66.67 Answer: c Explanation:$$\eqalign{ & {\text{Speed = }}\left( {\frac{{150 + 300}}{{40.5}}} ...
View QuestionA man standing at a point P is watching the top of a tower, which makes an angle of elevation of 30º with the man’s eye. The man walks some distance towards the tower to watch its top and the angle of the elevation becomes 45º. What is the distance between the base of the tower and the point P?
a) 9 units b) $$3\sqrt 3 $$ units c) Data inadequate d) 12 units Answer: c Explanation: ...
View QuestionA ladder 10 m long just reaches the top of a wall and makes an angle of 60° with the wall.Find the distance of the foot of the ladder from the wall (√3 = 1.73)
A ladder 10 m long just reaches the top of a wall and makes an angle of 60° ...
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