An express train takes 2 hours less than a passenger train to travel 264 km between Mysore and Bangalore. If the average speed of the express train is 22 km/hr more than that of the passenger train, then average speed of express train is : ___.
Let,
speed of express train = x km/h
then,
speed of passenger train = (x - 22) km/h
distance to be travelled = 264 km
using formula,
time = distance / speed
and
According to the question
taking LCM
cross multiplying
dividing by 2 both sides
Form here,
x = - 44
x = 66
Since,
speed can't be negative
therefore
we will accept
So,
Answer:
refers to the attachment.
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Answers & Comments
Question :-
An express train takes 2 hours less than a passenger train to travel 264 km between Mysore and Bangalore. If the average speed of the express train is 22 km/hr more than that of the passenger train, then average speed of express train is : ___.
Solution :-
Let,
speed of express train = x km/h
then,
speed of passenger train = (x - 22) km/h
distance to be travelled = 264 km
using formula,
time = distance / speed
and
According to the question
taking LCM
cross multiplying
dividing by 2 both sides
Form here,
x = - 44
and
x = 66
Since,
speed can't be negative
therefore
we will accept
x = 66
So,
average speed of express train will be
66 km/h.
Answer:
refers to the attachment.