SOLUTION: Susan and Joan are diving for golf balls in a large trap. Susan recovers a golf ball every 0,016 hours while Joan recovers a ball every 0,025 hour. If both are working then at wh

Question 91236: Susan and Joan are diving for golf balls in a large trap. Susan recovers a golf ball every 0,016 hours while Joan recovers a ball every 0,025 hour. If both are working then at what rate(in golf balls per hour) are they recovering golf balls?
Kindly help me.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Susan and Joan are diving for golf balls in a large trap. Susan recovers a golf ball every 0,016 hours while Joan recovers a ball every 0,025 hour. If both are working then at what rate(in golf balls per hour) are they recovering golf balls?
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Susan DATA:
Time = 0.016 hrs/job ; Rate = 1/0.016 job/hr
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Joan DATA:
Time = 0.025 hrs/job ; Rate = 1/0.025 job/hr
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Their together rate is 1/0.016 + 1/0.025 = 62.5 + 40 = 102.5/hr
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Cheers,
Stan H.
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