Concept explainers
To calculate: The work done in shoveling the driveway by Lee and Susan together.
Answer to Problem 27PT
The time required for Jeena and her brother to do the work together is
Explanation of Solution
Given information:
The required time for Lee to shovel is
The required time for Susan to shovel is
Formula used:
Work done:
Calculation:
Consider work as unity.
Calculate rate of Lee’s work:
Calculate rate of Susan work:
Calculate the total work.
Solve the above equation to find the value of t.
Hence, the time required for Lee and Susan to do the work together is
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