Question

the train.
10. A train 270 m long is running at 80 km/hr. How much time will it take to cross a
platform 130 m long?Acoording to variation method​

Answer 1

Total distance traveled by the train = 270+130 = 400 m. = Speed = 80 km/h = 80 * 5/18 = 22.22 m/s. = Time = 400 / 22.22 = 18 seconds.

hope it helps u ...

Answer 2

☞ Question :-

A train 270 m long is running at 80 km/hr. How much time will it take to cross a platform 130 m long?

☞ Given :-

• Distance of platform = 130m
• Distance of train = 270m
• Speed = 80 km/hr

☞ To find :-

• Time taken to cross a platform 130m long

☞ Formula to be used :-

• Time = Distance / Speed

☞ Solution :-

• Actual distance = 130 + 270

= 400m

By multiplying 5/18, convert it into m/sec

➞ Speed = 80 × 5/18 m/sec

➞ Speed = 400/18 m/sec

We have the formula,

Time = Distance / Speed

➞ Time = 400 / 400/18 sec

➞ Time = 400 × 18/400 sec

➞ Time = 18 sec

Time taken to cross platform 130m long = 18 sec