Concept explainers
How long it will take for both them to pick a bushel together.

Answer to Problem 4LC
Explanation of Solution
Given:
S pics a bushel of apples in 45 min and A pics a bushel of apples in 75 min.
Concept Used:
- Least Common Denominator (LCD) is the smallest number that is divisible by the denominator of all the fractions that are being added or subtracted.
- Solving an equation containing rational expressions
- Multiply both sides of equations by LCD(least common denominator) of all denominators.
- Remove any grouping symbols and solve the resulting equation for the variable asked in equation
Calculation:
In order tofind the time it will take for both them to pick a bushel together, observe that S can picks a bushel of apples in 45 min, so in 1 minute she can pick
Now if they both picks a bushel together, in 1 minute they both can pick
So, they together can pick a bushel of apple in
Thus, it will take
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