Problem 1 :
The book fair had a sale where 6 books were $20.46. If you wanted to buy 7 books, how much money would you need?
Solution :
Given : Cost of 6 books is $20.46
Then, the cost of 1 book is
= 20.46/6
= $3.41
The cost of 7 books is
= 7(3.41)
= $23.87
So, we need $23.87 to buy 7 books.
Problem 2 :
A video game store was getting rid of old games, selling them 3 for $56.28. If they sold 7 games, how much money would they have made?
Solution :
Given : Cost of 3 old games is $56.28.
Then, the cost of 1 old game is
= 56.28/3
= $18.76
The Cost of 7 old games is
= 7(18.76)
= $131.32
So, if they sold 7 games, they would they have made $131.32.
Problem 3 :
At the store beef jerky is $44.25 for 3 pounds. If you buy 4 pounds, how much will it cost?
Solution :
Given : Cost of 3 pounds is $44.25
Then, the cost of 1 pound is
= 44.25/3
= $14.75
The Cost of 4 pounds is
= 4(14.75)
= $59
So, 4 pounds of beef jerky will cost $59.
Problem 4 :
At the baseball stadium the price for popcorn is $5.88 for 3 bags. If you want to buy 7 bags of popcorn, how much will it cost ?
Solution :
Given : Cost of 3 bags is $5.88.
Then, the cost of 1 bag is
= 5.88/3
= $1.96
The Cost of 7 bags is
= 7(1.96)
= $13.72
So, if we want to buy 7 bags of popcorn, it will cost $13.72.
Problem 5 :
At the toy store you could get 2 board games for $8.36. Online the price for 3 board games is $12.84. Which place has the highest price for a board game?
Solution :
Toy Store Cost of 1 board game is = 8.36/2 = $4.18 |
Online Cost of 1 board game is = 12.84/3 = $4.28 |
4.18 < 4.28
From the above comparison, it is clear that online has the highest price for a board game.
Problem 6 :
At the market you can buy 5 bags of apples for $23.60. At the orchard you can get 7 bags of apples for $32.76. Which is the better deal?
Solution :
Market Cost of 1 bag of apple is = 23.60/5 = $4.72 |
Orchard Cost of 1 bag of apple is = 32.76/7 = $4.68 |
4.72 > 4.68
Comparing the unit prices, orchard has lower price. So buying apples in orchard is better deal.
Problem 7 :
A store had 4 blue chairs for $73.48 or 5 red chairs for $91.40. Which color chair has a lower unit price?
Solution :
Blue Chair Cost of 1 chair is = 73.48/4 = $18.37 |
Red Chair Cost of 1 chair is = 91.40/5 = $18.28 |
18.37 > 18.28
Comparing the unit prices, red color chair has a lower unit price.
Problem 8 :
A fast food restaurant had 7 boxes of chicken nuggets for $25.90. A competing restaurant had 3 boxes of chicken fingers for $11.07. Which food has a higher unit price?
Solution :
Chicken Nuggets Cost of 1 box is = 25.90/7 = $3.70 |
Chicken Finger Cost of 1 box is = 11.07/3 = $3.69 |
3.70 > 3.69
Comparing the unit prices, chicken nugget has a higher unit price.
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