Question

Maryam ate three cookies and Robert ate five cookies. There were twenty cookies in the package. What percent of the cookies did they eat?

Answer 1

40%

Explanation:

Total number of cookies eaten

= Cookies eaten by Maryam + Cookies eaten by Robert

= 3 + 5

= 8

Total number of cookies in the package = 20

∴Percent of cookies eaten =
`(NumberOfCookiesEaten)/(TotalNumberOfCookies)` × 100%

=
`(8)/(20)` × 100%

= 40%