1.1 Determining the Best Buy Assignment
1. Find the unit price to the nearest cent
Item
Light bulbs
Paper towels
Garbage bags
Sponges
Items/pkg
40
150
28
6
Price
UNIT PRICE
Items/pkg
Price
$1.68
15
$15.98
$2.55
Three rolls
of 350
$27.30
$4.65
125
$14.38
$5.32
12
$12.99
UNIT PRICE
2. Determine the lower unit price
a) 2000 bolts for $54.99 or 5000 bolts for $119.99
b) Deli ham at $4.59 for 170 g or roast beef at $2.29100 g
c) Yogurt: 650 g for $2.99 or 800 g for $5.59
d) Chedder cheese at $2.29100g or swiss cheese at $3.29175 g
e) 3.78 L of Deck Stain for $39.95 or 237 ml for $2.75 (Note 1 L = 1000 ml)
3. Henry needs a small amount of paint for a bathroom wall. He can pay either $32.97 for 2.2 L of
paint or $15.49 for 950 ml. Which would be the better buy? (Note 1 L = 1000 ml)
4. Jennifer is buying orange juice. Which has the better unit price?
-Concentrated orange juice: $1.85 for 355 ml; mix with 3 cans 935 ml each) of water to serve
-Ready to serve orange juice: $1.40 for 1.89 L
5. Jayden is a flooring installer. He provides the information below for a client trying to decide what
kind of flooring to use.
Type of Flooring
Warranty
Unit Price
Amount needed
Ceramic tile
Lifetime
$6.36 per tile
120 tiles
Laminate tile
10 years
$54.01 per box
13 boxes
a) Calculate the total price for each type of flooring.
b) Which type of flooring do you think the client should choose? Explain your thinking
6. Patrick is ordering cartons of detergent for resale in his store. He can order a carton of 12 for $34.68
plus $5.45 for delivery, or a carton of 18 for $49.50 plus $6.25 for delivery. Which is a better buy,
and by how much per unit?
7. The cost of a 355 ml can of juice is $1.25 in a vending machine. A 1.89 L carton of the same juice
costs $3.89 at the grocery store. How much would you save per liter if you bought juice from the
grocery store instead of the vending machine?