Concept explainers
Maria, LaShawn, and Mike are all students. It takes Maria 8 hours to write half of her paper for history class. It takes LaShawn 2x hours to write one third of her paper, and Mike takes
To calculate the time taken to complete the paper as a group.
Answer to Problem 20P
The time taken to complete the paper together is
Explanation of Solution
Given information:
The given statement is:
“Maria, LaShawn and Mike are all students. It takes Maria
Calculation:
Time taken by Maria to complete the full paper is
Work done by Maria is
Time taken by LaShawn to complete the full paper is
Work done by LaShawn is
Time taken by Mike to complete the full paper is
Work done by Mike is
The work done together can be calculated by:
The time taken to complete the paper together is:
Hence, the time taken to complete the paper together is
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