Question

Edward worked these hours during the week: 6, 5 1/2, 4 1/4, 7 1/2, 4 3/4. If he is paid $5.15 per hour, how much did he earn?A) $133.90B) $141.63C) $144.20D) $139.05

Answer 1

Given:

Worked hours during the week are:

$6,\text{ }5\frac{1}{2},\text{ }4\frac{1}{4},\text{ }7\frac{1}{2},\text{ }4\frac{3}{4}$

Per hours charge is $5.15

Sol:

Per hours charge is $5.15

Total working hours per week is:

$\begin{gathered} =6+5\frac{1}{2}+4\frac{1}{4}+7\frac{1}{2}+4\frac{3}{4} \\ \\ =6+\frac{10+1}{2}+\frac{16+1}{4}+\frac{14+1}{2}+\frac{16+3}{4} \\ \\ =6+\frac{11}{2}+\frac{17}{4}+\frac{15}{2}+\frac{18}{4} \\ \\ =\frac{24+22+17+30+18}{4} \\ \\ =\frac{111}{4} \end{gathered}$

If one hour's charge is $5.15 so a charge of 111/4 hours.

$\begin{gathered} =\frac{111}{4}\times5.15 \\ \\ =142.9125 \end{gathered}$

In a week Edward $142.9125 earn.