Games In the college union, 130 students were surveyed as to what board games they played.The following data were collected: 57 played backgammon, 89 played checkers, and 76 played chess, while 35 played checkers and backgammon, 50 played chess and checkers, and 30 played backgammon and chess. Twenty students played all three games.
a. How many of these students played only chess?
b. How many of these students did not play chess?
c. How many students in this group played at least one of these games?
d. How many students in this group played backgammon or checkers?
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