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SAT Word Problems Practice Flashcards

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

Read the first 7 SAT Word Problems Practice flashcards as text

  1. A population of bacteria doubles every 3 hours. Starting with 500 bacteria, how many will there be after 12 hours?

    Answer: 8,000

    12 hours = 4 doubling periods. Count = 500 × 2⁴ = 500 × 16 = 8,000.

  2. A cyclist rides 15 mph for part of a 60-mile trip and 10 mph for the rest. The trip takes 5 hours. How many miles did the cyclist ride at 15 mph?

    Answer: 30

    d/15 + (60−d)/10 = 5 → multiply by 30: 2d + 3(60−d) = 150 → −d = −30 → d = 30.

  3. Three consecutive odd integers have a sum of 51. What is the product of the largest and smallest?

    Answer: 285

    n + (n+2) + (n+4) = 51 → n = 15. Smallest = 15, largest = 19. Product = 15 × 19 = 285.

  4. A school has 850 students. Each takes math, science, both, or neither. 600 take math, 500 take science, and 100 take neither. How many take both?

    Answer: 350

    Students in at least one = 750. By inclusion-exclusion: 600 + 500 − both = 750 → both = 350.

  5. A shirt costs $45. It is discounted 20%, then an additional 10% off the sale price. What is the final price?

    Answer: $32.40

    After 20% off: $36. After 10% off that: $36 × 0.90 = $32.40.

  6. A $1,000 investment earns 8% interest compounded annually. What is it worth after 3 years? (Approximate to the nearest dollar.)

    Answer: $1,240

    A = 1000 × (1.08)³ = 1000 × 1.2597 ≈ $1,260. Set answers: ['$1,240','$1,260','$1,295','$1,331'], correct=1.

  7. A bag contains 3 times as many dimes as quarters. The total value is $2.75. How many quarters are in the bag?

    Answer: 5

    Let q = quarters, d = 3q dimes. 0.25q + 0.10(3q) = 2.75 → 0.55q = 2.75 → q = 5.