Question
450 metre long train ‘A’ is running with a speed of
99 km/hr. Train ‘B’ which is 555 metre long is running with a speed of 90 km/h in opposite direction of train ‘A’. For how much time, the smaller train is completely obscured by the larger train when they cross each other?Solution
Length of smaller train = 450 metre Speed of smaller train = 99 × (5/18) = 27.5 m/s Length of bigger train = 555 metres Speed of bigger train = 90 × (5/18) = 27.5 m/s Since, the smaller train is completely obscured by larger train, therefore, extra length of larger train = 555 – 450 = 105 metres Relative speed of trains ‘A’ and ‘B ‘= 27.5 + 25 = 52.5 m/s (Since, the trains are running in opposite direction) Required time = 105/52.5 = 2 second
It was Sunday on June 2, 2019. What will be the day on June 2, 2027?
- It was Monday on November 12, 2018. What will be the day on November 12, 2028?
- When seen through a mirror, a clock shows 2:45hrs. The correct time is ___.
- What was the day of the week on ‘9th November 1998’?
What is the angle between the minute hand and the hour hand at 1:40hrs when taken in anticlockwise direction from the minute hand?
It was Tuesday on 12th September 2023. What will be the day on 12th September 2031?
Mishti's birthday is on Thursday 27th April. On what day of the week will be Aradhya's Birthday in the same year, if Aradhya was born on 20
- What will be the angle formed between the hour hand and minute hand of a clock at 6:48am?
If Valentine’s day (14th February 2017) was Sunday, then, find in which forthcoming year we would celebrate the Valentine’s day on Sunda...
What will be the angle formed between the hour hand and minute hand of a clock at 8hrs. 20 mins?
