A car takes 2 hours to reach a destination by travelling at the speed of 60 km per hour how long will it take when the car travel at the speed of 80 kilometre per hour
Answers
Answered by
1
Answer:
Answer
Let the car takes x hours to reach a destination by travelling at the speed of 80 km/h. Then,
Speed (in km/hr) 60 80
Time (in hours) 2 x
Clearly, more the speed, less will be the time taken. So, it is a case of inverse proportion.
∴60×2=80×x⇒x=
80
60×2
=
2
3
Hence, the time taken will be 1
2
1
hours.
Answered by
3
Answer:
Distance = speed × time
= 60 × 2
= 120 km
If speed = 80 km
120 = 80 × time
Time= 120/80
= 1.5 hrs
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