Q.

A car took 2 hours to cover a distance having a speed of 60km/hr. What is the time taken to cover the same distance with speed 80km/hr?


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a

1.5 hr

b

1hr

c

2hrs

d

None of these 

answer is A.

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Detailed Solution

Given that the car took 2 hours to cover a distance having a speed of 60 km/hr.
Here, speed = 60 km/hr and time = 2 hours.
Distance= speed×time  .
Distance =60×2   = 120 km.
The time taken when speed is 80 km/hr to cover same distance,
Time = distance speed   Time = 12080
Time = 1.5 hr.
Hence, the time taken to cover the same distance with a speed of 80 km/hr is 1.5 hr.
Therefore, option 1 is correct.
 
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A car took 2 hours to cover a distance having a speed of 60km/hr. What is the time taken to cover the same distance with speed 80km/hr?