Problem-Solving and Data Analysis practice question

Answer: C. 240 miles

Rate = 150 / 2.5 = 60 mph. In 4 hours: 60 × 4 = 240 miles. Find the unit rate first — it makes rate problems one step.

Why the other answers are wrong

A. 210 miles

210 is what you get by adding just one more hour of travel (150 + 60); the trip is 1.5 hours longer than 2.5, so it's 150 + 90 = 240.

B. 225 miles

225 doesn't come from any single slip on these numbers — it's a decoy. Find the unit rate first (150 ÷ 2.5 = 60 mph), then multiply by 4.

D. 260 miles

260 would require a rate of 65 mph, but 150 ÷ 2.5 = 60 mph, so the answer is 60 × 4 = 240.

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