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1. A plane travels 695km with wind and 498km aginst
the wind in same time.The speed of wind is 21km/hr. Find
the speed of plane?
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Answer Posted / uma mahesh
127.179(app)
given distance of the train along the wind is 695
and againt the wind is 498
and time = distance/speed
as we know that time is equal in both the cases hence equate
695/s1=498/s2-----------(1);
where s1=speed of the plane + speed of the wind
and s2=speed of the plane -speed of the wind
given that speed of the wind is 21k/h
s1=sp+21
s2=sp-21
substitu in eq 1
we get the answer as 27.17(app)
| Is This Answer Correct ? | 8 Yes | 1 No |
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