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
A group of three objects must be selected from six objects K, O, S, T, V, and W according to the following conditions: Which of the following is an acceptable selection of objects?
A K,O And S
B K, S and T
C K, S and V
D O, S, and V
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
Which of the following is true concerning the following statement: class Manager extends Employee
A Manager is a concrete class and a superclass.
B Manager is a concrete class and a subclass.
C Manager is an abstract class and a superclass.
D Manager is an abstract class and a subclass.
Which of the following statements is a true statement concerning the open database connectivity standard (ODBC)?
A Each vendor desiring to be ODBC-complaint provides an ODBC driver.
B Requires certain criteria to be met in order to establish an ODBC connection.
C Provides a programming interface that provides a common language for application programs to access and process SQL databases independent of the RDBMS accessed.
D All of the above.
Out of the following statements, concerning an electric field, which statement is not true?
A The electric intensity is a vector quantity
B The electric field intensity at a point is numerically equal to the force exerted upon a charge placed at that point
C An electric field is defined as a point in space at which an electric charge would experience a force
D Unit field intensity in the exertion of a force of one newton on a charge of one coulomb
Which statement concerning the diagnosis of ADHD is true?
A Boys are more likely to be diagnosed with ADHD than girls
B Most children \outgrow\ symptoms of ADHD
C About 20 percent of school-age children are diagnosed with ADHD
D Racial minority status is a good predictor of being diagnosed with ADHD

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