Question

The student council is raising money by selling bottled water at a band competition. The table shows the prices for different brands. Which brand costs the least per bottle? Explain your reasoning.

Answer 1

12 pack

Explanation:

for 12 pack which is $5.25 a bottle will cost $0.4375

Answer 2

The brand which cost least per bottle is:

Brand B

Explanation:

Brand A:

It cost $ 3.45 for a pack of 6 bottles.

This means that cost of 1 bottle= $ (3.45/6)

i.e.

cost of 1 bottle=$ 0.575

Brand B:

It cost $ 5.25 for a pack of 12 bottles.

This means that cost of 1 bottle= $ (5.25/12)

i.e.

cost of 1 bottle=$ 0.4375

Brand C:

It cost $ 10.99 for a pack of 24 bottles.

This means that cost of 1 bottle= $ (10.99/24)

i.e.

cost of 1 bottle=$ 0.4579

Since, 0.4375 is least among {0.575,0.4375,0.4579}

This means that the brand which cost least per bottle is: Brand B.