18
Q:
A) 355 mts | B) 325 mts |
C) 365 mts | D) 312 mts |
Answer: A) 355 mts
Explanation:
Explanation:
Given speed = 63 km/hr = m/s
Let the length of the bridge = x mts
Given time taken to cover the distance of (170 + x)mts is 30 sec.
We know speed = m/s
--> x = 355 mts.