Numerical Reasoning: Data Interpretation Flashcards

A table shows staff satisfaction scores (out of 10) across 5 offices: 7.2, 6.8, 8.1, 7.5, 6.9. What is the mean satisfaction score across all offices?

Answer: 7.3

(7.2+6.8+8.1+7.5+6.9)/5 = 36.5/5 = 7.3.

A chart shows that a program served 4,200 beneficiaries in Year 1 and grew by 15% in Year 2 and 10% in Year 3. How many beneficiaries were served in Year 3?

Answer: 5,313

Year 2 = 4,200 × 1.15 = 4,830; Year 3 = 4,830 × 1.10 = 5,313.

A table shows the ratio of managers to staff in four departments: A=1:8, B=1:12, C=1:10, D=1:6. Department B has 3 managers. How many total staff (including managers) are in Department B?

Answer: 39

3 managers × 12 staff each = 36 staff + 3 managers = 39 total.

A bar chart shows procurement spending by category ($000s): Equipment=850, Software=320, Services=640, Supplies=190. By how much does Equipment spending exceed the average of the other three categories?

Answer: $438K

Average of others = (320+640+190)/3 = 383.3K; 850 − 383.3 ≈ $467K — closest is $466K.

A table shows leave days taken per employee across a team of 6: 12, 8, 15, 10, 8, 13. What is the mode of leave days taken?

Answer: 8

8 appears twice in the dataset; all other values appear only once.

A line graph shows cumulative grant disbursements ($M): End of Month 1=$0.9M, Month 2=$2.1M, Month 3=$3.6M, Month 4=$5.4M. What is the average monthly disbursement over these four months?

Answer: $1.35M

Total disbursed = $5.4M over 4 months; $5.4M / 4 = $1.35M per month.

A table compares two offices' monthly output for 6 months. Office A totals 1,440 units; Office B totals 1,260 units. What is Office B's output as a percentage of Office A's?

Answer: 87.5%

1,260 / 1,440 × 100 = 87.5%.