Question
Train ‘A’ running with a speed of 63 km/hr can cross
a standing goods train of 4 times its length in 24 seconds. Find the time taken by 150 metres long train ‘B’ which is coming from opposite direction of train ‘A’, with a speed of 15 m/s, to cross train ‘A’.Solution
Let the length of train ‘A’ be ‘x’ metres Therefore, length of the goods train = ‘4x’ metres Speed of train ‘A’ = 63 × (5/18) = 17.5 m/s According to the question, 4x + x = 17.5 × 24 => 5x = 420 => x = 84 Therefore, time taken by train ‘B’ to cross train ‘A’ = {(84 + 150)/(24 + 15)} = 6 seconds
In a certain code language, ‘PREFER’ is coded as ‘KIVUVI’. What is the code for ‘DEFINE’ in that code language?
What is the code for ‘say may’ in the given code language?
What is the code for ‘letters newly’?
In a certain code language, ‘TRIPLE’ is written as ‘SUQJFM’, then how will ‘OPTION’ be written in that language?
If third digit of each number is replaced by 4, then how many numbers will be divisible by 7?
In a certain code language ‘SHINE’ is written as ‘ITIFO’ and ‘PRIVATE’ is written as ‘JSQVFUB’. How is &...
If ‘Earth’ is called as ‘Mars’, ‘Mars’ is called as ‘Venus’, and ‘Venus’ is called as ‘Jupiter’, then, which planet is known as...
In a certain code language, ‘KPURKTG’ is written as ‘LRVVLBH’. How will ‘HQTIKXG’ be written in that language?
In a certain code language, ‘market outlook remains’ is written as ‘xc, sd, kv’, ‘experts over positive remains’ is written as ‘kv, mn, qa...
If white is called blue, blue is called red, red is called yellow, yellow is called green, green is called black, black is called violet and violet is c...
Relevant for Exams:
