Tommy can make 2 boxes/hr
Sarah can make 4 boxes/hr
Jessie can make 5 boxes/hr
When they all work together, how long will it take to make 1 box?
Sarah can make 4 boxes/hr
Jessie can make 5 boxes/hr
When they all work together, how long will it take to make 1 box?
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Add their individual rates to figure out how fast they will be together.
2 boxes/hr + 4 boxes/hr + 5 boxes/hr = 11 boxes/hr.
Therefore if all through work together, they'll make the box of candy at a rate of 11 boxes/hr.
To figure out how long it'll take to finish 1 box, divide
1 box / (11 boxes/hr) = 1/11 of an hour = 5.45 minutes
2 boxes/hr + 4 boxes/hr + 5 boxes/hr = 11 boxes/hr.
Therefore if all through work together, they'll make the box of candy at a rate of 11 boxes/hr.
To figure out how long it'll take to finish 1 box, divide
1 box / (11 boxes/hr) = 1/11 of an hour = 5.45 minutes