Question

A train 1.2 km long running at 90km/hr crosses a 1.8 km long bridge in
(A) 1 min
(B) 2 min
(C) 3 min
(D) 4 min​

Answer 1

Answer:

2 minutes

Step-by-step explanation:

here total distance =1.2+1.8=3km velocity =90km/hr that means into minutes 90/60=3/2. time = distance / velocity =3/3/2=3×2/3=2. time = 2 minutes