Q1. A man Travels 600 km partli by train and partli by car. If covers 400 km by train and rest by It takes 6 hours and 30 minutes. But if he travels 200 km by train and rest by car. He takes half an hour long. Find speed of train and that of car.
Please someone solve this question.
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total dist to travel = 600 km
we need to find the speed so speed = dist/time ( d=s/t)
let the speed of train be x kmph and bus be
y kmph
first case
train 400 km
bus 200km
time 13/2 hours
400/x + 200/y = 13/2
second case
train = 200 km
car 400 km
time = 7 hours
200/x + 400/y = 7
let 1/x be u and 1/y be v
400u+200v=13/2 or 800u+400v=13
200u+400v=7
solve them
x = train = 100kmph
y= car=80kmph
we need to find the speed so speed = dist/time ( d=s/t)
let the speed of train be x kmph and bus be
y kmph
first case
train 400 km
bus 200km
time 13/2 hours
400/x + 200/y = 13/2
second case
train = 200 km
car 400 km
time = 7 hours
200/x + 400/y = 7
let 1/x be u and 1/y be v
400u+200v=13/2 or 800u+400v=13
200u+400v=7
solve them
x = train = 100kmph
y= car=80kmph
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