Q. 104.3( 8 Votes )
A car takes 2 hours to reach a destination by travelling at 60 km/hr. How long will it take while travelling at 80 km/hr?
A. 1 hr 30 min
B. 1hr 40 min
C. 2hrs 40 min
D. none of these
More the speed, lesser the time to travel. So, it is an inverse proportion.
Let the required time be x hr.
⇒ 2 × 60 = 80 × x
⇒ x = = 1.5 hours = 1hour 30 minutes
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