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A school has five houses A,B,C,D and E. A class has 23 students, 4 from house A, 8 from house B, 5 from house C,

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A school has five houses A,B,C,D and E. A class has 23 students, 4 from house A, 8 from house B, 5 from house C, 2 from house D and rest from house E. A single student is selected at random to be the class monitor. The probability that the selected student is not from A, B and C is A. 4/23 B. 6/23 C. 8/23 D. 17/23 Select the correct answer from above options

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B. 6/23 Total number of students = 23 Number of students in house A, B and C = 4 + 8 + 5 = 17 ∴ Remains students = 23 - 17 = 6 So, probability that the selected student is not from A, B and C = 6/23

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