4. A car covers a distance in 40 minutes with an average speed of 60 km per hour.
The average speed to cover the same distance in 30 minutes is :
(a) 80 km/h
(b) 45 km/h
(c) 70 km/h
(d) 45 km/h
Answers
Answered by
0
A car covers a distance in 40 min with an average speed
=60 km/h=
60
60×1000
m/min
In 1 min the same distance can be cover with speed =
60
60×1000×40
=4000 m/min
In 25 min, the same distance can be cover with speed =
25
4000
=1600 m/min
=
1000
1600
×60=16×6=96 km/hr
Answered by
1
Answer:
a 80kmph
Step-by-step explanation:
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