Question

Khushi travels from A to B at 10m/sec and
comes back the same road B to A at double
the speed. Her average speed for the
whole journey is :​

Answer 1

Explanation:

A to B:A---–------――B=10m/s (initial)

B――――――――B=at double speed 20m/s (final)

average speed = final speed - initial speed

----------------------------–--------

2

= 20-10/2 = 5m/s ans