12. An aeroplane takes one hour forty minutes
to cover a distance 1250 km. Whereas a
helicopter takes two hours and forty
minutes to cover a distance of 400 km. Find
the ratio of the speeds of the two.
2.5 km /m
Answers
Answered by
2
for aeroplane
time taken = 1 hr 40 min =
hours
distance = 1350 km
speed =
=
=
= 810 km/h
for helicopter
time taken = 2 hr 40 min =
hrs
distance = 600 km
speed =
=
=
= 225 km/h
then ratio of their speeds are 810 : 225 = 18:5
hence ,
ratio of the speed of the two is 18:5
#Learn more:
An aeroplane takes 1 hour 40 minutes to cover a distance 1250 kilometre where is helicopter takes 2 hours and 40 minutes to cover a distance of 400 kilometre find the ratio of the speed of the two
Answered by
0
Answer:
18:5
Explanation:
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