Question

A girl travels 20 miles on her bicycle.The tri takes 2 hours. express her speed in miles /hr​

Answer 1

10 miles/hr.

Explanation:

Distance travelled = 20 miles

Time taken = 2 hours

Speed = Distance ÷ Time

= (20 ÷ 2) miles/hr.

= 10 miles/hr.

Answer 2

Step by step Explanation:  

Given: Distance traveled by girl = 20 miles  

Time taken by her = 2 hours  

To find: The speed of the girl in $\frac{miles}{hr}$.

• We know, Speed is the rate at which an object moves along a path.

• Also, the formula to find the speed is,

       ⇒ $Speed = \frac{Distance}{Time}$

• Here,

      ⇒$Distance = 20\ miles$  

      ⇒$Time = 2 hrs$  

• Putting the values obtained in the above formula,

      ⇒$Speed = \frac{20\ miles}{2\ hrs}$

      ⇒ $Speed = \frac{10\ miles}{1\ hr}$  

Hence, the girl is travelling at a speed of $10\frac{miles}{hr}$.