3/3 would be 1 hour
3/18 of the lawn would be done in 1 hour
18/3=6
6*1 = 6
it would take 6 hours to do the whole lawn
It will take 360 minutes to water the entire lawn
Cross multiply can be defined as the process of multiplying the numerator of the first fraction on one side of the equals to symbol, with the denominator of the second fraction on the other side of the equals to symbol.
1/18 lawn is watered in 1/3 of hour = 20 min
Whole lawn will be watered in 20 × 18 = 360 min
To learn more about cross multiplication: https://brainly.com/question/26281051?referrer=searchResults
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