Welcome to Westonci.ca, the Q&A platform where your questions are met with detailed answers from experienced experts. Our platform offers a seamless experience for finding reliable answers from a network of experienced professionals. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

An airplane flew for 6 hours with a 22-km/h tail wind. The return flight against the same wind took 8 hours. Find the speed of the plane in still air

Sagot :

6 × 22 = 8 × ( s - w ) ; and s + w = 22 ; where s = the speed of the plane in still air and w = the speed of the wind ;
132 = 8 × ( s - w );
s - w = 16,5 km/h;
s+ w =  22   km/h 

----------------------------------( + )
2s      = 38,5 km/h;
s = 38,5÷2;
s = 19,25 km/h ;