Question 224496: Jasmine is helping her father plant trees to create a border around the back yard. Jasmine plants a tree every 25 minutes, and her father plants a tree every 15 minutes. If they started together, howlong before they would finish planting a tree at the same time?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Jasmine is helping her father plant trees to create a border around the back yard. Jasmine plants a tree every 25 minutes, and her father plants a tree every 15 minutes. If they started together, howlong before they would finish planting a tree at the same time?
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Find the least common multiple of 25 and 15
25 = 5^2
15 = 3*5
LCM = 3^5^2 = 75 minutes
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Cheers,
Stan H.
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