Question

A man moves on a straight path.He travels total distance.he travels half of his journey with speed 10 ms .The remaining part of journey was covered by him with speed 20 ms for half of remaining time and with velocity 40 ms for other half of remaining time .The average speed is..

Answer 1

Explanation:

khairiat pucho jara khairiat pucho.......khaidbde jsl zara

3×3=9 9÷0=0 5×6=30 30×30=900