Sewing

Beth's mother can sew 235 pairs of short pants in 6 days while Lourdes can sew 187 pairs in 8 days. How many more pairs of short pants can Beth's mother sew?

Correct result:

x =  15.9167

Solution:

$$\begin{gathered} d_1=235\mathrm{/}6={\displaystyle \frac{235}{6}}=39\frac{1}{6}\doteq 39.1667 \\ {d}_2=186\mathrm{/}8={\displaystyle \frac{93}{4}}=23\frac{1}{4}=23.25 \\ x=d_1-d_2=39.1667-23.25={\displaystyle \frac{191}{12}}=15\frac{11}{12}=15.9167 \end{gathered}$$

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