A car takes 7 hours to cover a certain distance at the speed of 48km/hr. If the speed is decreased by 20km/hr, how much time will it take to cover the same distance?
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Answered by
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case 1
time taken=7hrs
speed=48km/hr
the distance=speed×time
=48×7
336=distance
now,
case 2
speed=20km/hr
distance=336
time=?
time=distance/speed
=336/20
time=16.8hrs
hope it will help you
thank u!
time taken=7hrs
speed=48km/hr
the distance=speed×time
=48×7
336=distance
now,
case 2
speed=20km/hr
distance=336
time=?
time=distance/speed
=336/20
time=16.8hrs
hope it will help you
thank u!
PriyankaSharma007:
you have considered the new speed as 20 but it is (48-20)=28
oh sugar!
tnx bdy
Answered by
4
s=d/t
48=d/7
d=336km
with new speed i.e 28km/hr
28=336/t
t=12 hr
:-)
48=d/7
d=336km
with new speed i.e 28km/hr
28=336/t
t=12 hr
:-)
have i done rong
yes
20 is new speed
see the comment on your answer
ru sure i m rong
thank you hari Chand for brainliest
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