Answers

2014-04-23T21:32:16+08:00
The answer is 1 because a total of 29 students played at least 1 game

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2014-04-27T10:36:52+08:00
There are 2 sports, in the given sentence, 12 played soccer, 17 played chess and 5 played both. That means, the 5 pupils who played both are already counted to those who played soccer and chess. Here's the solution : 12-5 = 7 , 17-5 = 12             7+12 = 19+5 = 24.
So all in all, there are 24 students who played. 
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