a train is moving at a speed and covers a distance of 100 kms in 5 hours .find the time taken to cover 200 kms
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---speed of the train in the first case is---
distance=100kms
time taken=5 hours
speed= 100/5=20kms/hours
As the speed remains constant for the second case
so, distance=200kms
speed=20kms/hours
time taken =200/20=10hours
so the train takes 10hours
distance=100kms
time taken=5 hours
speed= 100/5=20kms/hours
As the speed remains constant for the second case
so, distance=200kms
speed=20kms/hours
time taken =200/20=10hours
so the train takes 10hours
Answered by
0
Time taken to cover 100 km = 5 hr
Distance covered in 1 hr = 100 ÷ 5 = 20 km
i.e = distance covered in 60 min = 20 km
(∵ 1 hr = 60 min)
time taken to cover 1 km = 60÷20 = 3 min
∴ time taken to cover 200 km
= 200 × 3 =600 min = 10 hrs
Distance covered in 1 hr = 100 ÷ 5 = 20 km
i.e = distance covered in 60 min = 20 km
(∵ 1 hr = 60 min)
time taken to cover 1 km = 60÷20 = 3 min
∴ time taken to cover 200 km
= 200 × 3 =600 min = 10 hrs
Ashwin1754:
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ya
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