Question

A train travels at an average of 50 miles per hour for 2x1/2 hours and then travels at a speed
of 70 miles per hour for 1x1/2 hours. How far the train did travels in the entire 4 hours?
a) 120 miles
b) 150 miles
c) 200 miles
d) 230 miles
e) None of these

Answer 1

in 1hr the train travels 50 miles......in the 1st case.
in the 1/2hr. the train traves a distance of 35miles......2nd case
and then the rest of the time we don't know as we have been given for 1and a half hour.
thus the answer will be e(none of these )
hope this answer will be beneficial to u

Answer 2

Answer :

There are two parts in the journey of train.

In first part of journey,
Speed of train = 50 miles per hour
Time = 2 × 1/2 hours = 2.5 hours
So distance covered,D1 = Speed × Time
=> D1 = 50 × 2.5 miles
=> D1 = 125 Miles

In second part of journey,
Speed of train = 70 miles/hour
Time = 1 × 1/2 hours = 1.5 hours
=> Distance covered,D2 = Speed × Time
=> D2 = 70 × 1.5 = 105 miles.

●So overall total distance covered by train in both parts of journey = D1 + D2 = 125 + 105 = 130 Miles.


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