Question

A bird flies from a tree A to the tree B with the speed of 40km/h and returns to the tree A from B with the speed of 60km/h what is average speed of the bird during this journey

Answer 1

SEE, Let distance between tree be x so total distance be 2x,

now total time will be, x/40+x/60= 100x/240

Dividing distance by time, average speed is 24/5km/h

Answer 2

Answer:

A bird flies from a tree A to the tree B with the speed of 40km/h and returns to the tree A from B with the speed of 60km/h what is average speed of the bird during this journey