Related Questions

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
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
Select the correct answer choice of the following Question : "The batting average for 40 innings of a cricket player is 50 runs. His highest score exceeds his lowest score by 172 runs. If these two innings are excluded then the average of the remaining 38 innings becomes 48 runs. What is his highest score?"
A 178
B 182
C 174
D 173
The average marks of a student in 10 parers are 80. If the highest and the lowest scores are not considered, the average is 81 . If his highest score is 92. find the lowest.
A 55
B 60
C 62
D None of these
The batting average for 40 innings of a cricket player is 50 runs. His highest score exceeds his lowest score by 172 runs. If these two innings are excluded then the average of the remaining 38 innings becomes 48 nuns. what is his highest score?
A 178
B 182
C 174
D 173
The average marks obtained by a group of 16 students was 20. One student left the group as a result of which the average of the remaining students rose to 21. But another student joined, as a result of which the average marks of the group dropped a bit and became 20.5. What was the average marks obtained by the student who left and the one who joined?
A 10
B 11
C 8
D 9
In a set of three numbers, the average of first two numbers is 2. The average of the last two numbers is 3, and the average of the first and the last numbers is 4. What is the average of three numbers ?
A 3
B 6
C 9
D 24
The average of eight numbers in 14. The average of six of these numbers 16. The average of the remaining two numbers is 16. The average of the remaining two numbers is-
A 4
B 8
C 16
D Data inadequate
In company X, the average salary of 10 of the employees is TK. 30,000 the average salary of 30 other employees is TK. 40,000 and the average salary of the remaining 20 employees TK. 60,000. What is the average salary of the 60 employees at the company ?
A TK. 40,000
B TK. 43,000
C TK. 45,000
D TK. 60,000
The average of six numbers is 3.95. The average of two of them is 3.4, while average of the other two is 3.85. What is the average of the remaining two numbers?
A 4.5
B 4.6
C 4.7
D 4.8

Next steps