Question

Smiley's Cookies makes the best chocolate chip cookies in town! Yesterday, the store sold 7 large cookies for every 5 small cookies. If Smiley's Cookies sold 30 more large cookies than small cookies yesterday, how many small cookies did they sell?

Answer 1

Answer: The number of small cookies sold = 75

Explanation:

GIven: Yesterday, the store sold 7 large cookies for every 5 small cookies.

Let 7x be the number of cookies and 5x be the number of small cookies. (i)

They sold 30 more large cookies than small cookies.

i.e.
`7x-5x=30` (Using (i))

`\Rightarrow\ 2x=30\\\\\Rightarrow\ x=(30)/(2)\\\\\Rightarrow\ x=15`

Thus, the number of small cookies sold = 5 (15)=75 (Using (i))

Hence, the number of small cookies sold = 75