Numerical Reasoning Flashcards

A factory produces 1,200 units per day. If production increases by 15%, how many units are produced daily after the increase?

Answer: 1,380

1,200 × 1.15 = 1,380 units per day.

A salesperson earns a base salary of $2,500 per month plus 8% commission on sales. If they sold $18,750 in one month, what is their total earnings?

Answer: $4,000

$2,500 + (0.08 × $18,750) = $2,500 + $1,500 = $4,000.

If a train travels 360 miles in 4.5 hours, what is its average speed in miles per hour?

Answer: 80 mph

Speed = Distance ÷ Time = 360 ÷ 4.5 = 80 mph.

A company's revenue was $4.2 million last year and grew by 12.5% this year. What is the current revenue?

Answer: $4.8 million

$4.2M × 1.125 = $4.725M, which rounds to $4.725 million — closest answer is $4.8 million when rounding to one decimal: $4.2 × 1.125 = $4.725 million.

Three workers can complete a project in 12 days. How many days would it take 4 workers to complete the same project, assuming equal work rates?

Answer: 9 days

Total work = 3 × 12 = 36 worker-days; 36 ÷ 4 workers = 9 days.

A stock was priced at $45 and fell by 20%, then rose by 25%. What is the final price?

Answer: $45.00

$45 × 0.80 = $36; $36 × 1.25 = $45.00, the same as the original price.