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Difficulty: EasyUnit Price Comparisons

A base recreation center needs to purchase tennis balls for an upcoming tournament. A single can of tennis balls costs $4.50\$4.50. A case containing 1010 cans costs $40.00\$40.00. How much money is saved per can by purchasing the case instead of individual cans?

  1. $0.50\$0.50Answer
  2. B
    $0.05\$0.05
  3. C
    $4.25\$4.25
  4. D
    $35.50\$35.50

Answer

$0.50\$0.50
Purchasing the case means each can costs $40.00\$40.00 divided by 1010, which is $4.00\$4.00 per can. Subtracting this bulk unit price from the individual price of $4.50\$4.50 gives a savings of $0.50\$0.50 per can.

Step-by-Step Solution

1
Calculate the unit price of a single can when bought by the case.
$40.00÷10=$4.00\$40.00 \div 10 = \$4.00 per can
To compare prices on equal terms, you must find the cost of one unit for the bulk option.
2
Calculate the difference between the individual can price and the bulk unit price.
$4.50−$4.00=$0.50\$4.50 - \$4.00 = \$0.50
Subtracting the lower unit price from the higher individual price reveals the exact savings per can.

Key Concept

Comparing the unit rate of a bulk purchase to an individual item price to determine savings.
Estimated Time:45s
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Topics

Unit Price Comparisons

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