Question

Chitra goes to her school from cycle at a speed of 15 km per hour and Returns at a speed of 10 km per hour calculate her average speed

Answer 1

hey here is ur answer

average speed = total distance travelled / total time taken

average speed =15+10/1+1
=25/2
12.5km/ hr

I hope this helps you

Answer 2

The average speed of Chitra is  $12 Km/hr$.

The formula for average speed is,

average speed = total distance / total time

Explanation:

Given:

• Chitra goes to school from cycle at a speed of $15 km/hr$.
• She returns from home at a speed of $10 km/hr$.

Let $'x'$ be the total distance up to her school.

Let $t_{1}$  be the time taken by Chitra to go,

Hence,

$t_{1} = x/15$

Time taken by chitra to come from school,

$t_{2} = x/15$

average speed =$\frac{ x+x}{\frac{x}{15} +\frac{x}{10} }$

$=\frac{2x}{\frac{2x+3x}{30} }$

$=12 km/hr$

Hence the average speed by which Chitra covered the total distance is $12km/hr$.

#SPJ2