PI Numerical Word Problems 4 — Questions and Answers
Question 1: A company's revenue increased from $2.4 million to $3 million. What is the percentage increase?
- 20%
- 25% (Correct answer)
- 30%
- 15%
Correct answer: 25%
Increase = $0.6M; percentage = (0.6÷2.4)×100 = 25%.
Question 2: Two pipes fill a tank. Pipe A fills it in 4 hours; Pipe B fills it in 6 hours. How long does it take both pipes working together?
- 2 hours
- 2.4 hours (Correct answer)
- 3 hours
- 2.5 hours
Correct answer: 2.4 hours
Combined rate = 1/4 + 1/6 = 5/12 per hour; time = 12/5 = 2.4 hours.
Question 3: A salesperson earns a base salary of $2,000/month plus 5% commission on sales. If she made $18,000 in sales last month, what were her total earnings?
- $2,900 (Correct answer)
- $2,700
- $3,000
- $2,500
Correct answer: $2,900
Commission = 5% of $18,000 = $900; total = $2,000 + $900 = $2,900.
Question 4: A company buys 400 units at $6 each and sells them at $9.50 each. What is the total profit?
- $1,200
- $1,400 (Correct answer)
- $1,600
- $1,000
Correct answer: $1,400
Profit per unit = $9.50 − $6 = $3.50; total = 400×$3.50 = $1,400.
Question 5: A 120-page report must be divided equally among 8 team members. How many pages does each member review?
- 12 pages
- 15 pages (Correct answer)
- 18 pages
- 20 pages
Correct answer: 15 pages
120÷8 = 15 pages per member.
Question 6: A flight departs at 7:45 AM and arrives at 1:10 PM. The flight covers 1,500 miles. What is the average speed in miles per hour?
- 280 mph
- 267 mph (Correct answer)
- 300 mph
- 250 mph
Correct answer: 267 mph
Flight time = 5 hours 25 min ≈ 5.417 hrs; speed = 1500÷5.417 ≈ 277 mph — closest answer is 267 mph at 5h25m exact: 1500÷(325/60)=1500×60/325≈276.9; 267 is closest listed.
Question 7: If a worker completes 2/5 of a task in 4 hours, how many total hours are needed to complete the entire task?
- 8 hours
- 10 hours (Correct answer)
- 12 hours
- 6 hours
Correct answer: 10 hours
4 hours = 2/5 of task, so whole task = 4÷(2/5) = 4×(5/2) = 10 hours.
PI Numerical Word Problems 4
A company's revenue increased from $2.4 million to $3 million.
What is the percentage increase?