Question

A girl rides a bicycle with a speed of 10km/hr for 2 hour and 15 km/hr
for next 3 hour. Find the distance moved by her and the average speed.

Answer 1

Answer:

Explanation:

Distance = Speed x Time

Let the distance covered in the first 2 hr be $d_{1}.$

$d_{1} = 10*2 = 20km$

Let the distance covered in the next 3 hr be $d_{2}.$

$d_{2} = 15*3 = 45km$

∴ The total distance moved by the girl = $d_{1} + d_{2} = 20 + 45 = 65km$

$Average Speed = \frac{Total Distance}{Total Time}$

⇒ $Average Speed = \frac{65}{5} = 13km/h$

Answer ⇒

Total Distance = 65km

Average Speed = 13km/h