Question
Train 'A' having a speed of 18 m/s can cross a man in 10
seconds. The length of train 'B' is 120 metres more than the length of 'A'. If the speed of 'B' is 42 m/sec and both trains are travelling towards each other, then find the time taken by them to cross each other.Solution
Length of train 'A' = 18 × 10 = 180 metres
Length of train 'B' = 180 + 120 = 300 metres
Relative speed = 18 + 42 = 60 m/sec
Required time = (180 + 300) ÷ 60 = 480 ÷ 60 = 8.0 seconds
More Trains Questions
Single superphosphate contains:
Which one of the following is a physical method of weed control?
The ‘Learning by Doing’ approach in extension education emphasizes:
Short term credit is usually for a period of ranging up to:
Tristeza virus is associated with .....
10 acres is equal to how many hectares?
Maize is generally not grown in
Which one of the following element is an important constituent of chlorophyll?
Post harvest treatment used in Cut flowers to prevent the spoilage by removing field heat is ___
Small seeded late maturing type of blackgram
