A train moves at a constant speed of 75 km/hr.
(1) How far will it travel in 20 minutes?
(ii) Find the time required to cover a distance of 250 km.
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Answer:
(i) 25 km
(ii) 3 hrs 20 minutes
Explanation:
in 60 minutes, the train covers 75 km
in 1 min , the train cover 75/60
(i) in 20 minutes, the train covers 75/60 × 20
= 25 km
(ii) time taken to cover 75 km = 60 minutes
time taken to cover 1 km = 60/75
time taken to cover 250 km = 60/75×250
=200 minutes
= 3 hrs 20 min
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