I'll solve each of these 10 word problems step by step.
Problem 1:
- 15 students passed the test
- These 15 students represent 75% of all students
- To find total students: 15 ÷ 0.75 = 20
Problem 2:
- John answered 36 questions correctly out of 40
- Percentage = (36 ÷ 40) × 100 = 0.9 × 100 = 90%
Problem 3:
- Team played 18 games
- Won 50% of them
- Games won = 18 × 0.50 = 9
Problem 4:
- 30 families own a boxer
- Total dog owners = 50 families
- Percentage = (30 ÷ 50) × 100 = 0.6 × 100 = 60%
Problem 5:
- Sale price = $36
- This is 90% of original price
- Original price = $36 ÷ 0.90 = $40
Problem 6:
- Salary = $30,000
- Spends 20% on expenses
- Amount spent = $30,000 × 0.20 = $6,000
Problem 7:
- Used truck = $12,000
- New truck = $24,000
- Percentage = ($12,000 ÷ $24,000) × 100 = 0.5 × 100 = 50%
Problem 8:
- Reptile exhibits = 3
- Total exhibits = 15
- Percentage = (3 ÷ 15) × 100 = 0.2 × 100 = 20%
Problem 9:
- Metal bar weighs 16 grams
- Contains 25% copper
- Copper amount = 16 × 0.25 = 4 grams
Problem 10:
- 18 painters worked on interior
- This represents 75% of total crew
- Total painters = 18 ÷ 0.75 = 24
Final Answer:
1) 20 students
2) 90%
3) 9 games
4) 60%
5) $40
6) $6,000
7) 50%
8) 20%
9) 4 grams
10) 24 painters
Parent Tip: Review the logic above to help your child master the concept of real life percent problem worksheet.
