Question 7 • ****Spring 2026 Financial Math - MA2007 MQS21QXV
Winnie is buying dog food for her dog. She needs 10 pounds of food each week, but has room to store any extra food that she purchases.The food comes in 4 different sizes as given below:4.2 pounds for $4.998.5 pounds for $9.2712 pounds for $11.0420 pounds for $18.99Winnie is trying to be a smart shopper and get the best deal on the dog food. Which size bag of dog food should Winnie buy?
Answer
A
Winnie should buy the 4.2 pound bags.
B
Winnie should buy the 8.5 pound bags.
C
Winnie should buy the 12 pound bags.
D
Winnie should buy the 20 pound bags.
Explanation
Compare the cost per pound for each size: the 4.2-pound bag costs about $1.19 per pound, the 8.5-pound bag about $1.09, the 12-pound bag $0.92, and the 20-pound bag about $0.95. The 12-pound bag has the lowest cost per pound, and Winnie can store the extra food she doesn’t need that week. So Winnie should buy the 12-pound bags.
AI-written and checked against the verified answer.