Question

The table below shows the price of rolls at a bakery. A baker’s dozen includes 13 rolls for the price of a dozen rolls. How much money is saved by buying a baker’s dozen instead of 13 individual rolls? Number of rolls 6 8 Baker’s dozen Price ($) $3.60 $4.80 $7.20

Answer 1

One will save $.0.60 with baker’s dozen option.

Explanation:

Number of rolls: 6 8 Baker’s dozen

Price ($): $3.60 $4.80 $7.20

At $3.60, we have 6 rolls, so per roll cost is =
`(3.60)/(6)` = $0.60

At $4.80, we have 8 rolls, so per roll cost is =
`(4.80)/(8)` = $0.60

Now, a baker’s dozen includes 13 rolls for the price of a dozen rolls.

This means, instead of 12 rolls you will get 13 rolls at $0.60 per roll.

Hence, one will save $.0.60 with baker’s dozen option.

Answer 2

The rolls are $3.60 for 6 rolls, or $0.60 each, so saving the cost of the 13th roll saves you $0.60.