SOLUTION: A train running at the speed of 90 km/hr crosses a platform of length 160 m in 10 seconds. What is the length of the train (in metres)? (a) 60 (b) 90 (c) 150 (d) 140 (e) 40

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: A train running at the speed of 90 km/hr crosses a platform of length 160 m in 10 seconds. What is the length of the train (in metres)? (a) 60 (b) 90 (c) 150 (d) 140 (e) 40       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 293380: A train running at the speed of 90 km/hr crosses a platform of length 160 m in 10 seconds. What is the length of the train (in metres)?
(a) 60 (b) 90 (c) 150 (d) 140 (e) 40

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A train running at the speed of 90 km/hr crosses a platform of length 160 m in 10 seconds. What is the length of the train (in meters)?
------
Convert 90km/hr to meter per sec.
---
90km/h(1h/3600sec)(1000m/1km) = 25meter/sec
---
Find distance the train travels in 10 seconds.
-------------
= 250 meter/10sec
----
Find length of train:
length + 160 meters = 250 meters
The train = 250-160 = 90 meters long
=====================
Cheers,
Stan H/



(a) 60 (b) 90 (c) 150 (d) 140 (e) 40