Question

an objective test was given to a group of 168 students. It was found that 5/6 of the students gave all correct answers. how many students made 1 or more mistakes?

Answer 1

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Answer 2

Answer:

28

Step-by-step explanation:

students given test=168

students given correct answer=5/6 of168

=5/6*168

=140

hence, number of students made one or two mistakes=168-140=28

So 28students made 1 or 2mistakes