An aeroplane flies along the four sides of a square at the speeds of 100, 200, 300 and 400 km/hr. find the average speed of the plane around the field.

An aeroplane flies along the four sides of a square at the speeds of 100,200,300 and 400km/hr .find the average speed of the plane around the field.

An aeroplane flies along the four sides of a square at the speeds of 200, 400, 600 and 800 km/h. Find the average speed of the plane around the field.

Smith travels along four sides of a square at speeds of 10, 12, 15 and 20 km/hr. The average speed of the Smith is:

A car travels along the four sides of a square at speeds v,2v,3v,4v respectively. If u is the average speed of the car in its travel around the square, then which one of the following is correct?

An aeroplane flies from place A to place B at the speed of 500km/hr .On the return journey ,its speed is 700km/hr .The average speed of the aeroplane for the entire journey is 566(2)/(3)km/hrb.583(1)/(3)km/hr c.83(2)/(3)km/hr d.600backslash km/hr

An aeroplane files around a square, the sides of which measure 100 miles each. The aeroplane covers at a speed of 100 mph the first side, at 200 mph the second side, at 300 mph the third side and 400 mph the fourth side. The average speed of the aeroplane around the square is