A school has five houses A, B,C,D and E. A class has 23 students, 4 from houses A, 8 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 isA. `(4)/(23)`B. `(6)/(23)`C. `(8)/(23)`D. `(17)/(23)`

A school has five houses A, B,C,D and E. A class has 23 students, 4 fr

1.	A school has five houses A, B,C,D and E. A class has 23 students, 4 from houses A, 8 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 isA. `(4)/(23)`B. `(6)/(23)`C. `(8)/(23)`D. `(17)/(23)`
Answer» Correct Answer - B Total number of students=23 Number of students in house A,B and C =4+8+5=17 `therefore` Remains students=23-17=6 So, probability that the selected is not from A, B and C=`(6)/(23)`