Numerical Reasoning Random 3

Question 1

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?

Accepted Answer

$774

Answer

Regular: 40 × $18 = $720; overtime: 2 × $27 = $54; total = $774.

Question 2

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?

Accepted Answer

12 hours

Answer

Net fill rate = 1/4 − 1/6 = 1/12 per hour; time = 12 hours.

Question 3

Stock price rose from $45 to $63. What is the percentage increase?

Accepted Answer

40%

Answer

Increase = $18; percentage = 18/45 × 100 = 40%.

Question 4

A car depreciates by 15% per year. If it is worth $20,000 today, what will it be worth after 2 years?

Accepted Answer

$14,450

Answer

After year 1: $17,000; after year 2: $17,000 × 0.85 = $14,450.

Question 5

Three workers can complete a job in 8 days. How many days would it take 6 workers to complete the same job?

Accepted Answer

4 days

Answer

Total work = 3 × 8 = 24 worker-days; 24 ÷ 6 = 4 days.

Numerical Reasoning Practice Test

Numerical Reasoning Practice Test

Numerical Reasoning Random 3