Question

Help!

Which of these is the best deal? [Note: there are two pints in a quart, and four quarts in a gallon]

Question 6 options:

A)

one quart of milk for $1


B)

1 gallon of milk for $2


C)

two quarts of milk for $1.50


D)

One pint of milk for 50 cents

Answer 1

B

Explanation:

Note:

1 gal = 4 quarts

1 pint = 0.5 quart

Re-writing all the choices in dollars and quarts and calculating how much each quart costs

A) $1 per 1 quart

B) $2 per gallon = $2 per 4 quarts = $2 ÷ 4 quarts = $0.50 per quart

C) $1.50 per 2 quarts = $1.50 ÷ 2 quarts = $0.75 per quart

D) $0.50 per 1 pint = $0.50 per 0.5 quart = $0.50 ÷ 0.5 quart = $1 per quart

If you compare all of the above, it is clear that answer B ($0.50 per quart) is the cheapest rate and hence the best deal.