Question

Lester worked 12 hours last week at the grocery store and and $93.00. If he continues to earn the same hourly pay, how many additional hours must he work to earn another $62.00?

Answer 1

Therefore, he must work 8 additional hours.

Explanation:

The rate of his work = $ earned/hours worked
Therefore, last week he earned `93/12`

We can simplify this to `31/4`
Now we can set up a proportion.

`31/4 = 62/x`

Let `x` = hours he must work to earn $62. Note that on both sides, we have $ earned/hours worked.

We can cross multiply (`a/b=c/d` and `ad=cb` are equivalent)

`31x=248`

`x=8`

Therefore, he must work 8 additional hours.