Recovering golf balls. Susan and Joan are diving for golf balls in a large water trap. Susan recovers a golf b

Question

Recovering golf balls. Susan and Joan are diving for golf balls in a large water trap. Susan recovers a golf ball every 0.016 hours while Joan recovers a ball every 0.025 hour. If both are working, than at what rate (in golf balls per hour) are they recovering golf balls?

Answer 1

102.5........but, sometimes balls that have

been waterbound for a time do not hit as

well as a dry ball that's never been wet.

Answer 2

102.5 golf balls per hour

1/.016 = 62.5

1/.025 = 40

in one hour Susan would recover 62.5 balls

in one hour Joan would recover 40 balls

62.5 b/h + 40 b/h = 102.5

You have to convert .016 and .025 into one hour so you divide one hour by incdividual increments at which the balls are gathered and add each end result.

Answer 3

This is simple math.  Take 1 (for 1 hour) and divide it by Susan's average and then do the same with Joan's.  You will get 62.5 and 40, add together, and the duo recover 102.5 golf balls per hour.