Question

The tables below show running hours of three printers that produce greeting cards and the total number of greeting cards produced over three weeks.

Number of Hours Machine Is Running

Printer A
Printer B
Printer C
Week 1
40
50
45
Week 2
45
50
35
Week 3
50
40
50


Total Cards Produced
Week 1
7,950
Week 2
7,350
Week 3
8,700

Printer B uses $15 in ink every hour. What is the ink cost for each card coming from printer B?
$0.30
$0.50
$1.00
$1.50

Answer 1

Printer B produces 30 cards/hour, so ink cost per card = $15 ÷ 30 = $0.50.

Answer: $0.50