Walking at 5/6 of its usual speed, a train is 10 minutes too late. What is usual time to cover the journey?
A. 70 minutes
B. 2 hours
C. 2/3 hours
D. 5/6 hours
E. 85 minutes
Answers
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A man is walking at a speed of 5/6
Original speed: New speed = 5: 6
Time taken ratio = 6:5
Actual time = 5x
New time = 6x
The difference between the actual and the new time is 10 minutes
6x – 5x = 10
x = 10
Actual time taken is 5x = 5× 10 = 50 minutes
Converting 50 minutes to hours
To convert minutes into hours, divide by 60
5060=56hours
∴ The usual time to cover the journey =hours
Option D is the correct answer.
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