Quick division estimate near round numbers: Evaluate 750.0003 ÷ 19.999 and select the nearest option.

Difficulty: Easy

Correct Answer: 38

Explanation:


Introduction / Context:
This division is very close to 750 ÷ 20, a classic mental-math benchmark. Small deviations (750.0003 instead of 750, and 19.999 instead of 20) create only tiny changes to the exact quotient, so the nearest choice is apparent after a quick check.


Given Data / Assumptions:

  • N ≈ 750
  • D ≈ 20
  • We need the nearest option to N/D.


Concept / Approach:
Compute the basic benchmark: 750 ÷ 20 = 37.5. Since the actual denominator is slightly smaller (19.999), the true quotient will be slightly larger than 37.5. Hence, the best nearby whole-number choice is 38.


Step-by-Step Solution:

Baseline: 750 ÷ 20 = 37.5Adjust for 19.999 (smaller than 20): quotient rises slightly above 37.5Therefore nearest integer option is 38


Verification / Alternative check:
Compute more tightly: 750.0003 ÷ 19.999 ≈ 37.502, which rounds to 38. Back-multiplication: 38 * 19.999 ≈ 759.962, reasonably near 750 with rounding tolerance for a nearest-choice question.


Why Other Options Are Wrong:

  • 49, 22, 18, 35: not near the 37.5–38 reference range.


Common Pitfalls:
Rounding in the wrong direction (assuming a larger denominator) or forgetting that a smaller denominator increases the quotient slightly above the 37.5 baseline.


Final Answer:
38

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