Work and time problems
If a number of workers can do some jobs in a certain time, how long would it take for a different number of jobs, or a different number of workers? For example, 25 artists draw 2 portraits in 5 hours: how long for 8 portraits?
The student works out the rate first, then scales it, watching whether more workers means more time or less.
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What changes each time
- Painters, artists and other workers
- The number of jobs or workers changes
- New numbers every time
More ratio, rates and percentages practice
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- Average speed there and back (Grade 5)
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