An aeroplane flies round a square field PQRS of each side

Last updated: 6/25/2023

An aeroplane flies round a square field PQRS of each side 1000 km Its speed along PQ is 400 km h along QR 500 km h along RS 600 km h and along SP 700 km h The average speed of the aeroplane over the entire trip A 550 km h C 527 km h B 600 km h D 500 km h