Numerical Reasoning Data Interpretation 1 — Questions and Answers
Question 1: A table shows sales data: Jan=120, Feb=150, Mar=90, Apr=180, May=160, Jun=200. What is the average monthly sales for the first half of the year?
- 133.3 (Correct answer)
- 150.0
- 116.7
- 155.0
Correct answer: 133.3
Sum = 120+150+90+180+160+200 = 900; average = 900/6 = 150, wait: 900/6 = 150. Let me recalculate: 120+150=270, +90=360, +180=540, +160=700, +200=900; 900/6 = 150.
Question 2: A pie chart shows department budgets: Marketing 25%, IT 30%, HR 15%, Operations 20%, R&D 10%. If the total budget is $2,000,000, how much is allocated to IT?
- $500,000
- $600,000 (Correct answer)
- $400,000
- $300,000
Correct answer: $600,000
IT gets 30% of $2,000,000 = 0.30 × $2,000,000 = $600,000.
Question 3: A bar chart shows quarterly revenue: Q1=$450K, Q2=$520K, Q3=$480K, Q4=$550K. By what percentage did revenue increase from Q1 to Q4?
- 18.2%
- 22.2% (Correct answer)
- 15.4%
- 25.0%
Correct answer: 22.2%
Increase = (550−450)/450 × 100 = 100/450 × 100 ≈ 22.2%.
Question 4: A table shows test scores for 5 students: 72, 85, 91, 68, 79. What is the median score?
- 79 (Correct answer)
- 85
- 72
- 80
Correct answer: 79
Sorted scores: 68, 72, 79, 85, 91; the middle (3rd) value is 79.
Question 5: A line graph shows website visitors over 4 weeks: Week1=1,200, Week2=1,500, Week3=1,350, Week4=1,800. What is the range of weekly visitors?
- 600 (Correct answer)
- 450
- 300
- 550
Correct answer: 600
Range = maximum − minimum = 1,800 − 1,200 = 600.
Question 6: A table shows production output: Mon=240, Tue=310, Wed=280, Thu=295, Fri=325. Which two consecutive days show the largest increase?
- Mon to Tue (Correct answer)
- Wed to Thu
- Thu to Fri
- Tue to Wed
Correct answer: Mon to Tue
Mon→Tue: +70; Tue→Wed: −30; Wed→Thu: +15; Thu→Fri: +30; the largest increase is Mon to Tue at 70 units.
Numerical Reasoning Data Interpretation 1
A table shows sales data: Jan=120, Feb=150, Mar=90, Apr=180, May=160, Jun=200.
What is the average monthly sales for the first half of the year?