SOLUTION: An airplane flew for 4 hours with a 20 km/h tail wind. The return flight against the same wind took 5 hours. Find the speed of the plane in still air.
Algebra.Com
Question 32610: An airplane flew for 4 hours with a 20 km/h tail wind. The return flight against the same wind took 5 hours. Find the speed of the plane in still air.
Answer by Paul(988) (Show Source): You can put this solution on YOUR website!
lET THE SPEED OF THE PLANE BE X
Equation:
4(x+20)=5(x-20)
4x+80=5x-100
-x=-180
x=180
Hence, the speed of the plane is 180mph.
Paul.
RELATED QUESTIONS
An airplane flew for 4 hours with a 20-km/h tail wind. The return flight against the same (answered by mananth)
An airplane flew for 4 hours with a 20 km/h tail wind. The return flight against the same (answered by josgarithmetic)
An airplane flew for 4 hours against a head wind of 40 km/h. On the return flight the... (answered by tutorvolunteer)
an airplane flew for 5 hours with a tail wind of 25 km/h.
the return flight against the (answered by checkley77)
An Airplane flew for 4 hours against headwind of 40 km/h. On the
return flight the same (answered by stanbon,josmiceli)
An airplane flew for 3 hours with a tail wind of 40 km/hr. The Return flight against the... (answered by checkley77,ankor@dixie-net.com)
An airplane flew for 3 hours with a tail wind of 40 km/hr. The return flight against the (answered by Electrified_Levi)
an airplane flew for 4.23 hours with a 25.5-km/h tail wind. the return flight against the (answered by Abbey)
An airplane flew for 6 hours with a 22-km/h tail wind. The return flight against the same (answered by checkley75)