57. The art club designed and made banners of the school colors, blue and white, for their fund-raiser. Each banner required yard of blue material and yard of white material. The club originally planned to purchase exactly enough material to make 500 banners, but found the material to be cheaper if purchased in full bolts—the blue material in 10-yard bolts and the white material in 12-yard bolts. How many extra banners was the club able to make if they purchased enough full bolts to make at least 500 banners?

Answer and Explanation

Your Answer is

Correct Answer is A

Explanation

Each 10-yard bolts blue material can be used for 40 banners. To make 500 banners, you need to buy 13, and the remaining blue material can be used to make 20 banners;

each 12 -yard bolts The white material can be used for 32 banners. To make 500 banners, you need to buy 16. The remaining white material can be used to make 12 banners;

So you can make 12 more banners.