If A covers a certain distance in 30 minutes and B covers the same distance in 45 minutes, then who is travelling in higher speed?
Answers
A car covers a distance between A and B in 45 minutes. If the speed of the car is reduced by 8 km per hour then the same distance is covered in 49.5 minutes. What is the distance between A and B?
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Speed and time has inverse relation for uniform velocity with fixed distance, so
v−8v=4549.5
v=8∗49.54.5
v=88km/h
So the distance between A and B = vt
=8860∗45
=66km
A car covers half of the distance between two places at 40km per hour and the other half distance at 60 km per hour. What is the average speed of the car?
With a uniform speed, a car covers a distance in 8 hours. Had the speed been increased by 4 km/hr, the same distance could have been covered in 7 hours and 30 minutes. What is the distance covered?
A car covers a certain distance in 50 minutes if it runs at 45 km per hour how much time will it take to cover the same distance at the speed of 30 km per hour?
A car is travelling at an average speed of 60 km per hour. How much distance will it cover in 1 hour 12 minutes?
A bus covers a certain distance in 3 hours 20 minutes at an average speed of 45 km per hour. How much time will it take to cover the same distance at a speed of 50 km per hour?
Let speed is X kmph
Time is 45 mts =3/4 hr
Distance is 3X/4 km
Reduced speed is X-8 kmph
Time is 49.5 mts
Distance is (X-8)(49.5/60)
Distance is same .
3X/4=(X-8)(49.5/60)
3X=(X-8)(198/60)
180X=198X-1584
18X=1584
X=88
Distance between A and B is (3/4)*88=66km
Explanation:
let distance be x
then a speed =dis/time
=x/30
them b speed =dis/time= x/45
hence compare them you will find a has more speed