Q.12. In a class of 300 students, they were
given Mathematics test in throo subjets
namely Economics, Statistics and Mathematics.
90 students failed in Economics, 100 failed 30
in statistics, 90 failed in Mathematics,
Go failed in Economics and Statistics,
169 failed in statistics and Mathematics
70 failed in Ecomomics and Mathematics
While so failed in all subjects
find number of students who
failed in at least one subiet.
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Answer:
the answer is 0 bro keep some hard questions
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