Question

John took 1hour to cycle 25 kilometres after which he increased his average speed by km/h . how long will it take him to cover the next 25kilometer if he maintains the new average speed ? by in inverse proportion
answer is 50 minutes
with explain
I will mark as brainlist
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Answer 1

Answer:

Given:·Time taken to cover a distance of 25 km = 60 min = 1 hourIncrease in speed = 5 km/h

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To Find:·

Time taken to cover next 25 km 's

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Concept:·

Speed = distance/time

Increased speed = x + 5 km/h

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Calculation:·

Speed of John in his journey with cycle

Speed = Distance/time

[distance = 25km,time = 1 hour]

= (25/1)km/h

=25km/h______________________________________

Increased speed = x + 5 km/h

= (25 + 5)km/h

30km/h

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Distance to be covered = 25km/h

Speed = 30 km/h

time = distance/speed

30/25

6/5

1.2 hour

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Explanation:

hope it helps you.