Question

15. A man starting from A reaches at B at a speed of 4km/hr and comes back to A at a speed of 6km/hr. Find the average speed of the man.

Please give answers fast
Don't give silly answers.
If know then only give. .​

Answer 1

Answer:

NSWER

Let the actual time be 't'

and distance be x

Now according to first condition, we have

4

x

=t+

60

5

And according to Second condition, we have

5

x

=t−

60

10

60x=4t+20

60x=5t−50

Subtracting equation 1 from 2, we have

0=t−70

∴t=70

Putting the value of t we get x=5km