Problem-Solving and Data Analysis practice question

Answer: D. 96 pages

1 minute = 60 seconds, which is 60/5 = 12 intervals of 5 seconds. Each interval gives 8 pages: 12 × 8 = 96. The trap is forgetting to convert the minute to seconds (using 8 × 5 = 40).

Why the other answers are wrong

A. 40 pages

You multiplied 8 pages by 5 seconds instead of converting the minute: 1 minute is 60 seconds, which is 60 ÷ 5 = 12 intervals, so 12 × 8 = 96.

B. 48 pages

48 is what the printer makes in 30 seconds, not a full minute — 60 seconds contains 12 five-second intervals, giving 12 × 8 = 96 pages.

C. 80 pages

80 doesn't come from a clean version of this setup; the reliable route is to count intervals first (60 ÷ 5 = 12), then multiply by 8 pages per interval.

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