Question

Ajay walked at an average speed of 8 kilometre per hour for 45 minutes and then ran at an average speed of 12 kilometre per hour for 40 minutes what was his average speed for the whole journey?​

Answer 1

Answer:

Answer:

5.64 km/hr

Step-by-step explanation:

Ajay walked at an average speed of 8 km per hour for 45 minutes

Speed =8 km/hr

Time = 45 minutes =

Distance = Speed * time =

He walked at an average speed of 12 kilometre per hour for 40 minutes

Speed = 12 km/hr

Time = 40 minutes =

Distance = Speed * time =

Total distance = 8+6 = 14 km

Total Time =

Average speed = Distance/Time =

Hence his average speed for the whole journey is 5.64 km/hr

Answer 2

Answer:

$(8 \times \frac{3}{4} )km+(12× \frac{2}{3} )km \\ 6km+8km \\ = 14 \: km</p><p>$

Total distance in

40 mins +45 mins =85/60hrs=17/12hrs

[tex]14km× \frac{12}{17} = \frac{164km}{17km}

The average speed of .z