a man takes rest for 10 minutes after every 30 minutes.if he runs 2km in 10 minutes find the distance covered after him in 80 min
Answers
The distance travelled by man in 80 min is 12 km.
A man takes rest for 10 minutes after every 30 minutes. if he runs 2 km in 10 minutes.
We have to find the distance covered after him in 80 min.
The man travels first 30 minutes without stopping.
∵ man runs 2 km in 10 minutes.
∴ the distance covered by man in first 30 min = 2 km × 30 min/10 min = 6 km
Now, the man takes rest for 10 minutes.
Again, the man travels for 30 minutes
∴ the distance covered by him in next 30 min = 2 km × 30 min/10 min = 6 km after that he takes rest for 10 minutes.
Now, the total time taken by man = 30 + 10 + 30 + 10 = 80 min
And total distance covered by man = 6 km + 6 km = 12 km
Therefore the distance covered by man in 80 min is 12 km.
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