Problem-Solving and Data Analysis practice question

Answer: 210

One hour is 60 minutes, so 3.5 hours is 3.5 × 60 = 210 minutes.

Common wrong answers

If you answered 180

180 is 3 hours only; the extra half hour adds 30 minutes.

If you answered 215

215 adds a stray 5; 3 × 60 + 0.5 × 60 = 180 + 30.

If you answered 350

350 treats an hour as 100 minutes.

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