1. Alice has to write 5 pages in 30 minutes.
- 30 minutes ÷ 5 pages = 6 minutes per page
- Answer: d. 6 minutes
2. Ruby has to write 15 pages in 30 minutes.
- 30 minutes ÷ 15 pages = 2 minutes per page
- Answer: e. 2 minutes
3. David learned 15 definitions in 90 minutes.
- 90 minutes ÷ 15 definitions = 6 minutes per definition
- Answer: b. 6 minutes
4. Lilly can prepare 24 paper boxes in three weeks.
- 3 weeks = 21 days
- 24 boxes ÷ 21 days ≈ 1.14 boxes per day
- But the question is about how many days to make 120 boxes
- 120 boxes ÷ (24 boxes / 3 weeks) = 120 ÷ 8 = 15 weeks
- Answer: c. 15 weeks
5. A painter can paint 20 windows in 5 days.
- 20 windows ÷ 5 days = 4 windows per day
- To paint 50 windows: 50 ÷ 4 = 12.5 days
- Answer: a. 12.5 days
6. Silver washed her dresses. She ironed them in 40 minutes. If she can iron 2 dresses in 10 minutes, how many dresses did she iron?
- 10 minutes → 2 dresses
- 40 minutes → 4 × 2 = 8 dresses
- Answer: a. 8 dresses
7. Jack had to frame 12 glasses in 2 days.
- 12 glasses ÷ 2 days = 6 glasses per day
- But the question is how many days to frame 30 glasses
- 30 glasses ÷ 6 glasses per day = 5 days
- Answer: g. 5 days
8. Silvia can knit two pairs of gloves in 5 hours. How many hours will she need to knit 8 pairs of gloves?
- 2 pairs → 5 hours
- 8 pairs → (8 ÷ 2) × 5 = 4 × 5 = 20 hours
- Answer: f. 20 hours
Parent Tip: Review the logic above to help your child master the concept of unit rate practice worksheet.
