Question

Pinky takes 25 seconds to run 100 meters and dinky takes 28 seconds to run the same distance.who runs fast and why?​

Answer 1

Explanation:

13 meter by 8 meter

Play Field The play field means that portion of the ground, which measures 13 meter by 8 meter (ABCD) for Men & Junior Boys and 12 meters by 6 meter for Women, Junior Girls and 11meter by 6 meter in case of Sub-Junior Boys & Sub-Junior Girls before struggle.

Answer 2

Given: Pinky takes 25 seconds to run 100 meters and dinky takes 28 seconds to run the same distance.

To find: Who runs fast and why?​

Solution:

• The formula of speed is given as follows,

        $speed = \frac{d}{t}$

• Here, d is the distance travelled and t is the time taken.

• Pinky runs 100 metres in 25 seconds, so her speed is calculated as,

        $s_{Pinky} = \frac{100}{25}$

                   $= 4ms^{-1}$

• Dinky runs 100 metres in 28 seconds, so her speed is calculated as,

        $s_{Dinky} = \frac{100}{28}$

                    $= 3.57 ms^{-1}$

• Pinky runs faster than Dinky because the speed of Pinky is greater than the speed of Dinky.

Therefore, Pinky runs fast because her speed is greater.