SOLUTION: Of 100 people in a room 70 play tennis and 50 play golf. At most, how many play only one of these sports?

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Question 282615: Of 100 people in a room 70 play tennis and 50 play golf. At most, how many play only one of these sports?
Answer by solver91311(24713) About Me  (Show Source):
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50 plus 70 is 120, so at least 20 people play two sports. Therefore, at most, 70 minus 20 = 50 people only play one sport and that sport is tennis.

John