Question

how long will a train 120m long take to clear a platform 130m long,if its speed is 50 km/hr?

Answer 1

total length = 120+130
=250m/1000= .250km
speed 50km/h
time = .250/50
0.05hour
= 18min.

Answer 2

Answer:

0.005 hours

Step-by-step explanation:

Given : Length of train = 120 m

            Length of platform = 130 m  

           Speed of train = 50 km/hr  

To Find: how long will a train 120m long take to clear a platform 130m long,if its speed is 50 km/hr?

Solution:

Length of train = 120 m  

1 m = 0.001 km  

120 m = $120 \times 0.001=0.12 km$

Length of train in km = 0.12 km

Length of platform = 130 m  

1 m = 0.001 km  

130 m = $130 \times 0.001=0.13 km$

Length of platform in km= 0.13 km

Total length = Distance = 0.12+0.13 =0.25 km

Speed of train = 50 km/hr  

$Time =\frac{distance}{Speed}$

$Time =\frac{0.25}{50}$

$Time =0.005$

In will take 0.005 hours  to clear a platform 130m long