Pre Algebra: Word Problems – Find Unit Rates
1. The cost of a pack of 6 mechanical pencils is 15 dollars. If the cost per pencil is increased by 25 cents, how much will 10 pencils cost?
(A) 25.00
(B) 2.50
(C) 16.50
(D) 2.75
(E) 27.50
2. A store sells half a dozen packs of pasta for 4.50. A competing store sells the same 6 packs of pasta for 2.40. How much do you save per pack if you purchase the pasta at the competing store?
(A) 2.10
(B) 0.75
(C) 0.40
(D) 0.35
(E) 6.90
3. A website sells hats online 5 for 16 dollars or 8 for 22 dollars. If you need to purchase 40 hats for your class, how much will they cost if you get them at the lowest price?
(A) 88
(B) 110
(C) 128
(D) 3.20
(E) 2.75
4. Use the table below below to answer question 4.
Museum Ticket Prices
| Adult | 12 dollars |
| Children | 8 dollars |
Children (under 2) | 2 dollars |
Package for 4 (2 adults & 2 children) | 30 dollars |
A class is going to the museum. There are 7 children, 2 teachers, 2 chaperones, and a one year old baby going on the field trip. What is the least amount of money they can pay to go to the museum?