Question

Jessica is a custodian at Oracle Arena. She waxes 20 m 2 20 m 2 20, start text, space, m, end text, squared of the floor in 3 5 5 3 ​ start fraction, 3, divided by, 5, end fraction of an hour. Jessica waxes the floor at a constant rate. At this rate, how many square meters can she wax per hour?

Answer 1

she can wax 33.33 m² of area per hour at the given rate

Explanation:

Data provided in the question:

Area of the floor that Jessica waxes = 20 m²

Total Time taken to wax the area =
`(3)/(5)` hours

Now,

The rate at which Jessica can wax per hour =
`\frac{\textup{Area she waxes}}{\textup{Total time taken to wax the area}}`

or

⇒ The rate at which Jessica can wax per hour =
`\frac{\textup{20}}{(3)/(5)}` m²/hour

or

⇒ The rate at which Jessica can wax per hour =
`\frac{\textup{20}*5}{3}` m²/hour

or

⇒ The rate at which Jessica can wax per hour = 33.33 m²/hour

Hence, she can wax 33.33 m² of area per hour at the given rate