The square on the hypotenuse is skew and impossible to visually validate. There's nothing to sum. It is a simple calculation to note that <span><span><span>32</span>+<span>42</span>=<span>52</span></span><span><span>32</span>+<span>42</span>=<span>52</span></span></span><span>, but its picture doesn't 'say' that the angle between the 3 and 4 sided square must be 90 degrees.
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Divide total miles by number of days:
151.2 / 24 = 6.3 miles per day
There would be 36 girls, following the ratio shown.
The range of it is 90 subtract the greatest # from the least 90-8
