Concept explainers
Your dad can clean the house in 2 hours and 10 minutes. Your mom can clean it in an hour and 45 minutes. How many hours does it take them to clean the house if they work together?
To calculate the time taken to clean the house together.
Answer to Problem 14P
The time taken for cleaning the house together is
Explanation of Solution
Given information:
The given statement is:
“Your dad can clean the house in
Calculation:
Time taken by dad to clean the house is
Work done by dad is
Time taken by mom to clean the house is an hour and
Work done by mom is
The work done together can be calculated by:
The time taken for cleaning the house together is:
Hence, the time taken for cleaning the house together is
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