In a school 100 students have access to three software packages A, B, C. Where 28 didn’t use any software, 8 used only package C, 26 used only package A,7 used package B, 10 used all three packages, 13 used both A and C a) Draw a Venn diagram with all sets enumerated as for as possible. b) If twice as many students used package A as Package C, write down a pair of simultaneous equations in x and y. c) Solve these equation to find x and y. d) How many students used package B.
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35 students used package B.