Question

Ques-

a train 200m long takes one min 40sec to travel a bridge of 800m calculate average speed​

Answer 1

Given: 200 m train takes 1 min 40 se lc to travel 800m

Diagram

1 min 40 s = 100 s

[--------------] _______________

200m 800m

Explanation:

Total Distance: 200m + 800m = 1000m

Total Time: 160 s

Average Speed= Total Distance/Total Time

= 1000/100 = 10m/s²

This is the required answer :)