SAT Ratios, rates, proportional relationships, and units Practice Question 12 (Easy)

Question bank / Ratios, rates, proportional relationships, and units

Math · Problem-Solving and Data AnalysisEasy

A cyclist rides at a constant speed of $18$ kilometers per hour. How many kilometers does the cyclist travel in $40$ minutes?

$7.2$

$12$

$27$

$720$

Show answer and explanation

Answer: B

Forty minutes is $\frac{40}{60} = \frac{2}{3}$ of an hour. Distance equals rate times time: $18 \times \frac{2}{3} = 12$ kilometers.

Choice D multiplies $18$ by $40$ without converting minutes to hours.

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