### A horse traveled at a constant speed of $30 \space km/h$ for the initial $2$ hours and then at a constant speed of $20 \space km/h$ for $3$ hours. What was its average speed?

$24 \space km/h$

Step by Step Explanation:
1. Given, speed for the initial $2$ hours $= 30 \space km/h$
Speed for the remaining $3$ hours $= 20 \space km/h$
So, the total time of the journey $= 2 + 3 = 5$ hours
Average speed can be found by using the formula below:
Average speed $=$ Total distance $\div$ Total time
2.  Distance covered in the initial $2$ hours $= 2 \times 30$ $= 60 \space km.$
 Distance covered in the remaining $3$ hours $= 3 \times 20$ $= 60 \space km. \space\space\space\space$
 Total distance covered $= 60 + 60$ $= 120 \space km.$
3.  Average speed $= 120 \div 5$ $= 24 \space km/h.$
4. Hence, the average speed of the horse was $24 \space km/h$.