Question
The time taken by train A , whose length is 'd' meters
to cross a bridge of 300 meters is equal to the time taken by train B of length 'd + 200' meters to cross a platform of 500 meters is equal. The ratio of speed of train A and B is 5:9 respectively. Find the value of d. (in meters).ÂSolution
ATQ, Length of train A = d, length of train B = d+200. Train A crosses a 300 m bridge, and Train B crosses a 500 m platform in equal time. Speed ratio: Train A to Train B = 5:9. Set up time equations:
Cross-multiply = 9(d+300)=5(d+700) Simplify: 4d = 800, So, d = 200.
Select the most appropriate ANTONYM of the given word.
 Timid
Autocracy
A) Subdue B) Loose C) Stimulate D) Careless
Out of four alternatives choose the one word which can be substituted for the given words/sentence and indicate the correct answer.
Clues availab...
A) Ambivalent                      Â
B) Anachronistic Â
C) Abstruse                     ...
Identical
She has a cheerful disposition.
OBSEQUIOUS
Select the word which means the same as the group of words given.
Branch of physics dealing with the properties of sound
The landscape was breathtaking .