A six-passenger plane cruises at 180 mph in calm air....

G

Guest

Guest
A six-passanger plane cruises at 180 mph in calm air. If the plane flies 7 miles with the wind in the same amount of time as it flies 5 miles against the wind, then what is the wind speed?
Please help, not sure where to begin with this-Thanks-Caron
 
Rule #1 - Name Stuff.

You never have to be unsure again.

P = Speed of Plane in Calm Air
W = Speed of Wind

P+W = Ground Speed with the wind
P-W = Ground speed against the wind

What's Rule #2?
 
You must log in or register to reply here.
Top