781  Average
1

Name : _________________

 

refresh

Class A - 14 students with the score 40%.
Class B - 6 students with the score 50%.
What is the total average score?



Class A - 8 students with the score 90%.
Class B - 2 students with the score 60%.
What is the total average score?



Class A - 14 students with the score 80%.
Class B - 6 students with the score 50%.
What is the total average score?



Class A - 18 students with the score 90%.
Class B - 2 students with the score 70%.
What is the total average score?



Class A - 3 students with the score 90%.
Class B - 7 students with the score 70%.
What is the total average score?



Class A - 18 students with the score 60%.
Class B - 2 students with the score 90%.
What is the total average score?



Class A - 5 students with the score 40%.
Class B - 5 students with the score 60%.
What is the total average score?



Class A - 2 students with the score 60%.
Class B - 8 students with the score 90%.
What is the total average score?



Class A - 14 students with the score 70%.
Class B - 6 students with the score 90%.
What is the total average score?



Class A - 7 students with the score 70%.
Class B - 3 students with the score 80%.
What is the total average score?



+(         )

 

(         )+

++[[          ]]++

781    43 84 71 88 76 ( 362 )   63 50 84 76 73 ( 346 )   [[ 708 ]]