Random Flashcards
7 cards from real Numerical Reasoning practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Random flashcards as text
A worker earns $18 per hour and works 42 hours in a week. The first 40 hours are regular pay; overtime is paid at 1.5× the regular rate. What is the total weekly pay?
Answer: $774
Regular: 40 × $18 = $720; overtime: 2 × $27 = $54; total = $774.
A tank is filled by pipe A in 4 hours and drained by pipe B in 6 hours. If both are open, how long does it take to fill the tank?
Answer: 12 hours
Net fill rate = 1/4 − 1/6 = 1/12 per hour; time = 12 hours.
Stock price rose from $45 to $63. What is the percentage increase?
Answer: 40%
Increase = $18; percentage = 18/45 × 100 = 40%.
A car depreciates by 15% per year. If it is worth $20,000 today, what will it be worth after 2 years?
Answer: $14,450
After year 1: $17,000; after year 2: $17,000 × 0.85 = $14,450.
Three workers can complete a job in 8 days. How many days would it take 6 workers to complete the same job?
Answer: 4 days
Total work = 3 × 8 = 24 worker-days; 24 ÷ 6 = 4 days.
A number is increased by 20% and then decreased by 20%. What is the net percentage change?
Answer: −4%
1.20 × 0.80 = 0.96, which represents a 4% net decrease.
If 8 items cost $52, what is the cost of 15 items at the same unit price?
Answer: $97.50
Unit price = $52 ÷ 8 = $6.50; 15 × $6.50 = $97.50.