Question
A train takes 7 seconds more to cross a 210-metre-long
platform than it takes to cross a pole. If a car running at the speed of 38 m/s takes 70 seconds to completely overtake the train, then find the length of the train.Solution
ATQ, The extra 7 seconds is taken by train to cross the platform, therefore Speed of the train = 210 ÷ 7 = 30 m/s So, relative speed of the car with respect to the train = 38 - 30 = 8 m/s (Since, both are travelling in same direction) Therefore, length of the train = 8 × 70 = 560 metres
- Select the most appropriate 'one word' for the expression given below.
A person who studies and writes about the past
... Select the most appropriate option to substitute the bold segment in the given sentence. If there is no need to substitute it, select 'No substitution'...
Select the option that can be used as a one-word substitute for the given group of words.
Relating to tasks normally performed by a servant
Give one word substitutes for the following from the choices given below them.
Language that describes something with obvious and intentional ex...
a condition, event, or person that is the cause of an important change
select the most appropriate option to substitute the bold segment in the given sentence. If there is no need to substitute it , select ‘ No Substituti...
Many kids from rich families become obnoxious due to the upbringing and lavish lifestyle that they have had.
Select the most appropriate option to substitute the underlined segment in the given sentence. If there is no need to substitute it, select ‘No subst...
Give a single word that substitutes for the following expression:
A government ruled by a single person with absolute power
Select the option that can be used as a one-word substitute for the given group of words
A hollow place in a wall for a statueÂ
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