Question

a person covers half of a certain distance at 4 km per hour and the rest of the distance at a speed of 6 km in 10 h what is the total distance travelled by him.​

Answer 1

Step-by-step explanation:

Let the Total distance be x

The half distance is covered with 6kmph so the time taken is

6

2

x

=

12

x

The half distance is covered with 3kmph so the time taken is

3

2

x

=

6

x

Avg speed =

Totaltime

Totaldistance

=

6

x

+

12

x

x

12x+6x

72x

18

72

=4