Manu travels from Mumbai to Pune at a speed of 15 km/hr and Pune to
Mumbai at 30 km/hr.

Find the average speed of the whole journey?

Before you go for the answer please comment your answer!

Answer:

Average speed = 2XY/X+Y
=2x15x30)/15+30
=900/45
=20km/hr.

20 km/hr

ReplyDelete20 km/hr

Delete20km/hr

ReplyDelete20 kmph

ReplyDelete22.5 kmph

ReplyDelete22.5 kmph....(30+15)/2=45/2=22.5

ReplyDelete22.5 km/hr

ReplyDelete20 kmph!

ReplyDelete20kmph

ReplyDeleteThat would depend on whether the journey is a two way journey (there and back) or only one way journey...

ReplyDeleteThe question is therefore not very precise.

22.5 km./hr

ReplyDelete22.5 km./hr

ReplyDelete22.5

ReplyDelete22.5

ReplyDelete