Related Questions

A school has 10 classes with the same number of students in each class. One day, the weather was bad and many students were absent. 3 classes were half full. 5 classes were 3/4 full and 2 classes were 1/6 empty. A total of 74 students were absent. What is the total number of students in this school?
A 200
B 220
C 240
D 400
Three math classes , X, Y , and Z, take an algebra test. The average score in class X is 83. The average score in class Y is 76. The average score in class Z is 85. The average score of all students in classes X and Y together is 79. The average score of all student classes Y and Z together is 81. What is the average for all the three classes?
A 81
B 81.5
C 82
D 84.5
A school has 10 classes with the same number of students in each class. One day, the weather was bad and many students were absent. 5 classes were half full, 3 classes were 3/4 full and 2 classes were 1/8 empty. A total of 70 students were absent. What is the total number of students in this school?
A 200
B 220
C 250
D 400
Which of the following declares an abstract method in an abstract Java class?
A public abstract method();
B public abstract void method();
C public void abstract Method();
D public void method() {}
E public abstract void method() {}
Atleast how many abstract methods must an abstract class contain?
A None
B One
C Two
D Five
The number of student in 3 classes is in the ratio 2:3:4 if 12 students are increased in each class this ratio changes to 8:11:14. The total number of students in the three classes in the beginning in the three classes in the beginning was:
A 162
B 108
C 96
D 54
A school has 10 classes with the same number of students in each class. One day, the weather was bad and many students were absent. 3 classes were half full, 5 class were 3/4 full and 2 classes were 1/6 empty. A total of 74 students were absent. What is the total number of students in this school?
A 200
B 220
C 240
D 246
Three maths classes: X, Y, and Z take an algebra test. The average score of class X is 83. The average score of class Y is 76. The average score of class Z is 85. The average score of class X and Y is 79 and the average score of class Y and Z is 81. What is the average score of the combined classes X, Y, and Z?
A 81
B 81.5
C 82
D 84.5
At a college, there are from 2 to 5 introductory English classes each semester, and each of these classes has from 20 to 30 students enrolled. If in one semester 12% of these students enrolled in introductory English fails, what is the greatest possible number of students who failed?
A 12
B 15
C 16
D 180
Which one of the following is a abstract noun?
A child
B boy
C childhood
D family

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