Question

A man walks at a speed of 6 km/h for 1 km and 12 km/h for the next 1 km. what is his the average speed.

Answer 1

firstly u have to find the time
that is time = distance/ speed
for 1st path time=1/6
for second path=1/6

average speed = total distance/ Total time
= 1+1/1/6+1/6
=2/1/3=6 km/he is the ans

Answer 2

Hii..
Here is your answer..

Solution:-
Distance travelled 1st time =1km
Speed=6km/h

So,
$time = \frac{distance}{speed} \\ = > \frac{1}{6} h$
Now,
Distance travelled 2nd time =1km
Speed =12km/h
So,
$time = \frac{1}{12} h$
So,
Total Distance travelled=1km+1km
$= > 2km$
Total time taken =
$= > \frac{1}{6} + \frac{1}{12} \\ = > \frac{2 + 1}{12} \\ = > \frac{3}{12}$
Now,
$average \: speed = \frac{total \: distance}{total \: time \: taken} \\ = > \frac{2}{ \frac{3}{12} }$
$= > \frac{2 \times 12}{3} \\ = > \frac{24}{3} \\ = > 8$
Hence,
Average speed is 8km/h

Hope it helps uh...✌️✌️✌️