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Mathematics 10 Online
OpenStudy (firejay5):

Manuel vacuums his swimming pool every 4 days and adds a water treatment every 5 days. If he vacuums his pool and adds the water treatment on the same day, in how many days will he again do both of these activities on the same day? A. 5 days B. 9 days C. 18 days D. 20 days

OpenStudy (firejay5):

@jim_thompson5910 @mathstudent55

OpenStudy (mathstudent55):

Didn't we just do this?

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