Question

Jessica is a custodian at Oracle arena. She waxes 20 mi squared of the floor 3/5 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

At The given rate, the area of floor that Jessica can wax is 33.3 m²

Explanation:

Given as :

The area of floor waxed = 20 square meters

The time taken to waxed 20 square meters floor =
`(3)/(5)` hours

Let The area of floor waxed per hour = A m²

Now, Applying unitary method

∵ In
`(3)/(5)` hours, The area of floor waxed = 20 m²

∴ In 1 hour , The area of floor waxed =
`(20)/((3)/(5))` m²

I.e In 1 hour , The area of floor waxed =
`(20* 5)/(3)`m²

Or, In 1 hour , The area of floor waxed =
`(100)/(3)` = 33.3 m²

Or, In 1 hour The area of floor waxed = A = 33.3 m²

Hence, At The given rate, the area of floor that Jessica can wax is 33.3 m² Answer