Question

7) Number of Calendars Cost 6 $114 8 $144 10 $160 15 $180 20 $300 A gift store is ordering calendars to resell. The table shows the cost for the given number of calendars. What is the best value?

Answer 1

The best value is
`\$ 180` for
`15` calendars.

Explanation:

Lets find out the unit cost of each calendars with different prices given here.

• The price of
  `6` calendars is
  `\$ 114`.

Unit cost of these calendars
`= (114)/(6) = \$ 19`

• The price of
  `8` calendars is
  `\$ 144`.

Unit cost of these calendars
`= (144)/(8) = \$ 18`.

• The price of
  `10` calendars is
  `\$ 160`.

Unit cost of these calendars
`= (160)/(10) = \$ 16`.

• The price of
  `15` calendars is
  `\$ 180`.

Unit cost of these calendars
`= (180)/(15) = \$ 12`.

• The price of
  `20` calendars is
  `\$300`.

Unit cost of these calendars
`= (300)/(20) = \$ 15`.

So the best value from customer point of view is the lowest unit cost.

And the lowest cost is being offered for
`15` calendars
`\ @\ 12\$` per calendar.