Chapter 11.2, Problem 49STP

To determine

To Find: How many more seconds did it take to run $200$ meter over low hurdles than $200$ meter dash.

Answer to Problem 49STP

  $45\sec$

Explanation of Solution

Given:

One day Lola run $100$ meter in $15$ seconds, $200$ meter in $45$ second and $200$ meter over low hurdles in one and half minutes.

Time to run $200$ meter over low hurdle= $1.5\min =90\sec$

Time for $200$ meter is $45$ second

Then

Time to run $200$ meter over low hurdle more than $200$ meter dash

  $\begin{array}{l}90-45\\ =45\sec \end{array}$

Hence, $45\sec$