An electrician

An electrician needs 1 1/3 rolls of electrical wire to wire each room in a house. How many rooms can he wire with 6 2/3 rolls of wire?

Correct answer:

n =  5

Step-by-step explanation:

$$\begin{gathered} a=1+{\displaystyle \frac{1}{3}}={\displaystyle \frac{4}{3}}=1\frac{1}{3}\doteq 1.3333 \\ b=6+{\displaystyle \frac{2}{3}}={\displaystyle \frac{20}{3}}=6\frac{2}{3}\doteq 6.6667 \\ n=b\mathrm{/}a=6.6667\mathrm{/}1.3333=5 \end{gathered}$$

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Dano

nice problem with mixed fractions...

1 year ago  Like

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