The following data were obtained from a class of 260 students:        100 students are in Accounting        120 students are in Economics        100 students are in Mathematics        10 students are in Accounting, Economics, and Mathematics        30 students are in Accounting and Economics        30 students are in Accounting and Mathematics        20 students are in Economics and Mathematics   How many students are in Mathematics only?

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Statements and Logic

Logic is the analysis of general patterns of thoughts without regard to any specific sense of context.