Question
Train A when travelling with a speed of 90 km/h crosses a
pole in 10 seconds. Find the time taken by the train A to cross another train B of length 20% more than that of train A which is coming from the opposite direction with a speed of 54 km/h.Solution
Speed of train A = 90 × 5/18 = 25 m/s
Length of train A = 25 × 10 = 250 metres
Length of train B = 1.2 × 250 = 300 metres
Speed of train B = 54 × 5/18 = 15 m/s
Relative speed = 25 + 15 = 40 m/s (opposite direction)
Total distance = 250 + 300 = 550 metres
Desired time = 550/40 = 13.75 seconds
In the following questions, out of the 4 alternatives, choose the alternative which best expresses the meaning of the idiom/phrases.
Over egg ...
Select the most appropriate meaning of the bold idiom in the given sentence.
Trying to find my lost ring in the college is like looking for a ...
apple polisher
Fill in the blank given below using the correct idiom.Â
The team's lack of preparation for the important presentation proved to be __________...
Select the most appropriate meaning of the given idiom.
To breathe one’s last
Select the most appropriate meaning of the given idiom.
In one's element
Break a leg
In the question below, a sentence is given with a part missing. From the options below, choose the correct combination of idioms that can fit in the bl...
His determination to spice up his story makes it sometimes read like a dime novel about a drink-crazed mafia don.
In the given question, a phrase/ idiom has been given and there are three ways in which the word has been used, in similar or different forms. You need...
Relevant for Exams:
