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Proportion: Quiz 11
Proportion: Quiz 11
1) It would take 6 hours for 10 machines to complete a task. All of the machines work at the same rate.
The 10 machines start to complete the task. After 2 hours, 2 of the 10 machines break down leaving the rest of the machines to complete the task.
How long does it take in total for the task to be completed?
2) It would take 8 workers 12 hours to harvest a field. All of the workers work at the same rate.
To start with, 8 workers harvest the field. After 7 hours, 2 more workers join the original 8 workers and they all harvest the field until the field has been fully harvested.
How long will it take in total for the field to be harvested?
3) It would take 7 machines 8 hours to complete a task. All of the machines work at the same rate.
After 5 hours, 1 of the machines breaks down leaving 6 machines to complete the task.
How long does it take in total for the task to be completed?
4) It would take 7 workers 12 hours to lay the foundations for a house. All of the workers work at the same rate.
The 7 workers start to lay the foundations. After 2 hours, 3 more workers join the 7 workers and they all keep working until the foundations have been laid.
How long does it take in total for the foundations to be laid?
5) It would take 9 machines 13 hours to complete a task. All of the machines work at the same rate.
After 5 hours, 4 of the machines break down. The original machines that haven’t broken down continue working until the task has been completed.
How long will it take in total for the task to be completed? Give your answer in hours and minutes.
The 10 machines start to complete the task. After 2 hours, 2 of the 10 machines break down leaving the rest of the machines to complete the task.
How long does it take in total for the task to be completed?
2) It would take 8 workers 12 hours to harvest a field. All of the workers work at the same rate.
To start with, 8 workers harvest the field. After 7 hours, 2 more workers join the original 8 workers and they all harvest the field until the field has been fully harvested.
How long will it take in total for the field to be harvested?
3) It would take 7 machines 8 hours to complete a task. All of the machines work at the same rate.
After 5 hours, 1 of the machines breaks down leaving 6 machines to complete the task.
How long does it take in total for the task to be completed?
4) It would take 7 workers 12 hours to lay the foundations for a house. All of the workers work at the same rate.
The 7 workers start to lay the foundations. After 2 hours, 3 more workers join the 7 workers and they all keep working until the foundations have been laid.
How long does it take in total for the foundations to be laid?
5) It would take 9 machines 13 hours to complete a task. All of the machines work at the same rate.
After 5 hours, 4 of the machines break down. The original machines that haven’t broken down continue working until the task has been completed.
How long will it take in total for the task to be completed? Give your answer in hours and minutes.