Speed & work rates
Use distance, time and work per hour to find the exact answer.
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Example
Example
At a constant 60 km/h, 30 minutes is 1/2 hour. The distance is 60 × 1/2 = 30 km.
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Four speed questions and four work questions
Meeting times and combined work
8 questions · No time limit
- Questions answered
- 0 / 8
- Active time
- 0:00
Keep track of the units
Read the requested unit before answering. Travel and work rates stay constant under the conditions stated in each question.
One way to solve it
Explore the method
Convert minutes to hours before multiplying by a speed.
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How this data is usedHelp
Choose one of five answers. The answer locks when selected. Read the method, then choose Next question.
Distance = speed × time. Use matching time units. Average speed is total distance ÷ total time. For work, add fractions of a job per hour.
Choose an exact answer in the requested unit. Fractions are exact values; do not round. One job means the whole task.
Finish all eight questions to save a result in this browser. An unfinished round stays in this tab, so you can continue it. Active time includes answers and review, but not background tabs. There is no time limit or speed bonus.
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About this practice
Learn a method
Use time unitsUse distance, time and work per hour to find the exact answer.
Report a problem
On by default unless you turn it off. Saved choices are kept. Shares starts, completions, replays and error categories. For ChatGPT visits, starts and completions may include the first QuickenBrain page and country. No answers, drawings or names.
How this data is used