SOLUTION: Susan and Joan are diving forgolf balls in a large water trap.Susan recovers a golf ball every 0.016 hour while Joan recovers a ball every 0.025 hour. If both are working, then at
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Question 147193: Susan and Joan are diving forgolf balls in a large water trap.Susan recovers a golf ball every 0.016 hour 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? Answer by nerdybill(7384) (Show Source):
You can put this solution on YOUR website! Susan and Joan are diving forgolf balls in a large water trap.Susan recovers a golf ball every 0.016 hour 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's rate: 1 golf ball per .016 hr: 1/.016
Joan's rate: 1 golf ball per .025 hr: 1/.025
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If they were to work together, the rates are combined:
1/.016 + 1/.025
= .025/.0004 + .016/.0004
= .041/.0004 balls per hour
or 102.5 balls per hour
