In a certain class, one-third of the students were absent. Half of the – InterviewSolution

InterviewSolution

1.	In a certain class, one-third of the students were absent. Half of the total strength the Maths test and one-fourth of the total strength attended the Physics test. If 6 students attended both the tests and every students who was present attended at least one of the two test, how many students were absent on that day ?A. 16B. 18C. 24D. 32
Answer» Correct Answer - C (i) Draw Venn diagram and proceed. (ii) Let the total number of students be x. (iii) `n(M) = x/2, n(P) = x/4` and `n(M nn P) = 6`. (iv) `m (M uu P) = x- (x)/(3)`. (v) Use `n(M uu P) = n(M) + n(P) - n(M nn P)` and find `x/3`.

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