Question
A 420 m long train crosses a platform twice its length
in 3 min. Find the speed of the train. Section 1Solution
Speed of train = (Length of train + Length of Platform)/Required time Length of train = 420 m Crossing time of platform = 3 × 60 = 180 sec Length of platform = 420 × 2 = 840 m Let the speed of train be x. Speed of train = (420 + 840)/180 ⇒  x = 7 m/s
In the following question select the answer pair that expresses a relationship most similar to that expressed in the capitalised pair.
Obfuscat...
A person pretending to be somebody he isn't
 Fill in the blanks with the appropriate antonym of the word in Italic from the options given:
The serene atmosphere was disturbed by a ______...
He reels (A) off a series of allegation (B) , most of which have either been positively discredited (C) or remain wholly unsubstantiated (D) .
...Select the option that is NOT an antonym of a word by way of adding the prefix 'in-'.
Choose the correct synonym for the given word.Â
RenewalÂ
Select the most appropriate meaning of the given idiom
Once in a blue moon
Choose the most appropriate antonym of the given word Â
METICULOUS
Complete the sentences given in List-I with the appropriate words given in List-II :
The money was left by a philanthropist to build a hospital ward.