please anyone explain the answer is 80km/ph and 160km/h
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Answer:
According to me
answer would be
1st plane:-140kmph
2nd plane:-60kmph
Step-by-step explanation:
After 6 hours the 2 planes have flown a combined distance of 1200kilometer.
1200 divided by 6= 200
They have flown at a combined speed of 200kmph, therefore their average speed is 100kmph.
The speed difference is 80kmph.
Therefore 80 divided by 2 = 40
Add 40kmph to the average speed of one, minus 40kmph from the average speed of the other one.
100 + 40 = 140
100 -40 = 60
The speeds of the planes are 140 kmph & 60 kmph.
Check:-
The first plane 140kmph X 6 = 840km
Second plane 60 kmph X 6 = 360km
840 + 360 = 1200km
BTW answer is not 80km and 160km.
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Step-by-step explanation:
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