The truck driver drive 36.61 miles per hour .
- The unit method is a method of finding the value of one unit and then finding the value of the required number of units. For simplicity, always write what you calculate on the right and what you know on the left.
- The formula of the unitary method is to find the value of a single unit and then multiply the value of a single unit to the number of units to get the necessary value.
It is given that a truck driver drove 119 miles in 3 1/4 hours .
On simplifying the time , we get
[tex]3\frac{1}{4} =\frac{3\times4+1}{4}\\\\ 3\frac{1}{4} =\frac{13}{4}[/tex]
which means that truck driver drove 119 miles in [tex]\frac{13}{4}[/tex] hours .
Using unitary method , we get
[tex]\frac{13}{4}[/tex] hours is taken by driver to complete = 119 miles
1 hour is taken by driver to complete [tex]=\frac{119\times4}{13} \\[/tex]
[tex]=36.61 \ miles[/tex]
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