WorkKeys Interpreting Workplace Graphics Questions and Answers 2

Question 1

A graph shows energy use: January = 4,200 kWh, December = 5,100 kWh. What is the percentage increase?

Accepted Answer

21.4%

Answer

Increase: 900 kWh. Rate: (900 ÷ 4,200) × 100 = 21.4%.

Question 2

Three suppliers: A=$4.20/unit, B=$3.95/unit, C=$4.50/unit. Which is cheapest and by how much vs. the most expensive?

Accepted Answer

Supplier B, $0.55 less

Answer

Cheapest: B ($3.95). Most expensive: C ($4.50). Difference: $0.55.

Question 3

Call center wait times over 6 hours: 2, 4, 7, 5, 3, 2 minutes. What is the median?

Accepted Answer

3.5 minutes

Answer

Sorted: 2, 2, 3, 4, 5, 7. Median = (3 + 4) ÷ 2 = 3.5 minutes.

Question 4

A project has 12 tasks: 6 green, 3 yellow, 3 red. What percentage are at risk or overdue?

Accepted Answer

50%

Answer

(3 + 3) ÷ 12 = 50%.

Question 5

A dashboard shows OEE at 72%. The target is 85%. How many percentage points below target is current performance?

Accepted Answer

13 points

Answer

85% - 72% = 13 percentage points.

WorkKeys Practice Test