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Numerical Reasoning and Data Interpretation Flashcards

7 cards from real OACP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Numerical Reasoning and Data Interpretation flashcards as text

  1. A police district recorded 144 thefts in Q1, 162 in Q2, 135 in Q3, and 159 in Q4. What is the average number of thefts per quarter?

    Answer: 150

    Total = 144 + 162 + 135 + 159 = 600; average = 600 ÷ 4 = 150.

  2. A patrol vehicle travels 480 km on 40 litres of fuel. If fuel costs $1.75 per litre, what is the fuel cost per 100 km?

    Answer: $14.58

    Consumption = 40 ÷ 480 × 100 = 8.33 L/100 km; cost = 8.33 × $1.75 ≈ $14.58.

  3. A table shows response times (minutes): 4, 7, 5, 12, 6, 8, 5. What is the median response time?

    Answer: 6

    Sorted: 4, 5, 5, 6, 7, 8, 12; the middle (4th) value is 6.

  4. In a bar chart, Division A shows 320 incidents, Division B shows 280, and Division C shows 400. What percentage of total incidents does Division C represent?

    Answer: 40%

    Total = 1000; Division C percentage = 400 ÷ 1000 × 100 = 40%.

  5. An officer earns a base salary of $62,400 per year plus a 12% shift differential for 6 months of night shifts. What are total annual earnings?

    Answer: $66,144

    Night differential = $62,400 × 12% × 0.5 = $3,744; total = $62,400 + $3,744 = $66,144.

  6. Crime statistics show a 15% decrease from 800 incidents last year. How many incidents occurred this year?

    Answer: 680

    Decrease = 800 × 0.15 = 120; this year = 800 − 120 = 680.

  7. A pie chart shows that 35% of calls are Priority 1, 45% are Priority 2, and 20% are Priority 3. If there were 1,400 total calls, how many were Priority 2?

    Answer: 630

    Priority 2 calls = 1,400 × 0.45 = 630.