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86%
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In a school of 100 students.It is known that exactly 90 play baseball, 80 play football, 70 play basketball.
What is the lowest possible number of students who play all three sports(baseball, football and basketball)?
[A]70
[B]60
[C]50
[D]40
[E]30
What is the lowest possible number of students who play all three sports(baseball, football and basketball)?
[A]70
[B]60
[C]50
[D]40
[E]30
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14 May 2018, 11:14
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To minimise the number of students playing all three we need to maximize the number of students playing two sport...
Max# students playing two sports will be 200 if we assume each 100 play both sports
Also since all three sum is 240 (90+80+70) we are sure that a min of 240-200 = 40 students play all three
Ans 40
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14 May 2018, 12:20
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Can someone elaborate it with formulas? I'm stuck. Thanks.
