Question

Laila goes into a store with two 1$billsandone$ $5$ bill. She makes a purchase using her money and receives no change. How many different dollar amounts are possible for the cost of Laila purchase?

• A. Three
• B. Four
• C. Five
• D. Six
• E. More than six

Answer 1

Answer: (C)

Five

In this problem, you have to count the number of combinations of Haleys bills that add up to different dollar amounts. Make a list!

5$ bills	1$ bills	Amount
$0$	$1$	1$
$0$	$2$	2$
$1$	$0$	5$
$1$	$1$	6$
$1$	$2$	7$

There are five different possible dollar amounts, making C the correct answer.