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Speed Time and Distance
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An old man driving bike at 80 km per hour. However being sugar patient, old man could not travel continuously. He takes small breaks each of 2 minutes for every 15 minute of his drive. How much distance the old man will cover in 90 minutes?

Answer & Solution
Correct Answer: Option B
For every 15 minutes he takes a rest of 2 minutes.
Hence,
for 90 minutes of drive he would require 12 minutes of rest.
Thus, he will be traveling for 90 - 12 = 78 minutes.
In 60 minutes he covers 80 Km.
In 1 minute he would cover $$\frac{{80}}{{60}}$$ Km.
In 78 minutes he would cover $$\frac{{80}}{{60}} \times 78$$   = 104 Km.
Examveda
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3 Comments
Rajkumari Chaudhary
Rajkumari Chaudhary 5 years ago
Just wow concept thanks
ANIDHYA PRAKASH
ANIDHYA PRAKASH 8 years ago
Yes he will rest only 5 times means 10 min.in his 6th phase of journey he completed 90 with 5 min drive in 6th phase.so total drive time is 80 min and rest time is 10 min only.
Sai Kamal
Sai Kamal 11 years ago
i think his rest time would be 10min
so, the journey time will be 80min
and the distance covered will be 106km