Question
Train A's speed is 25% less than that of Train B, and
its length is half the length of Train B. Train A crosses a 400 m bridge in 36 seconds, while Train B crosses a 200 m tunnel in 27 seconds. Determine the length of Train B.Solution
Let Speed of train B = 4x Speed of train A = 4x * 75/100 = 3x Let Length of train A = y Length of train B = 2y y + 400 = 3x * 5/18 * 36 y + 400 = 30x --------(1) 2y + 200 = 4x * 5/18 * 27 2y + 200 = 30x -------(2) From both the above equations- 2y + 200 = y + 400 y = 200 m Length of train B = 200 * 2 = 400 m
Select the most appropriate meaning of the word marked in bold letters according the context in which it has been used.Â
On account of the pau...
Cricket : Eleven :: Baseball : ?
She has a pessimistic view of the world.
- In the following sentence, choose the word opposite in meaning to the bold word to fill in the blank.
The conference was dull for most attendees, b... Choose the word with the correct spelling.
Select the most appropriate antonym of the given word.
Indolent
Sentient
Area : Hectare :: Luminosity :Â ?
Pick out the correct option showing the proper prefix to the word given.
Sonic
Select the word which means the same as the group of words given.
Branch of physics dealing with the properties of sound