Question
Train P travelling at 52 km/hr crosses another train Q,
having three fourth of its length and travelling in opposite direction at 20 km/hr in 21 seconds. Train P passed a railway platform in 36 seconds. Find the length of platform.Solution
Let the length of the first train is x metre Length of second train = 3x/4 Therefore, (52 + 20) x 5/18 = {x + (3x/4)}/21 ⇒ 72 x 5/18 = (7x/4)/21 ⇒ x = 240 m Therefore, let the length of the platform be y metre ⇒ 52 x 5/18 = (240 + y)/36 ⇒ 520 = 240 + y ⇒ y = 520 – 240 = 280 m
Which of the following statement is true?
If all the letters of the word ‘ENRICHED’ are arranged in the alphabetical order then the position of how many letters will be remain unchanged?
Who among the following likes G?
How many persons are seated between P and Q?
How many persons sit in the row?
Who among the following person sits opposite to I?
Who among the following person sits fourth to the left of F?
Who among the following pair of persons are sitting opposite to each other?
I. WM
II. YN
III. UM
IV. VO
Who reads Dainik Bhaskar?
Which of the statement is true?
