There are 45 students in class 6 (1), and the average score of mathematics is 93.2. There are 50 students in class 6 (2). The total score in this mathematics test is 306 points more than that in class 1, and the average score in class 6 is 93.2 (2) What is the average score of the class

There are 45 students in class 6 (1), and the average score of mathematics is 93.2. There are 50 students in class 6 (2). The total score in this mathematics test is 306 points more than that in class 1, and the average score in class 6 is 93.2 (2) What is the average score of the class

Total score of class 6 (1) = 45x93.2 = 4194
Total score of class 6 (2) = 4194 + 306 = 4500
2) The average score of the class is 4500 / 50 = 90

Sixth grade math problem score
1. 6 + 2 / 3 = ()
2. 2 / 5-2 / 5 = ()
3. 2 / 6-3 = ()
4. Half + Half = quarter (judge) and write the correct answer
5. What is 35 out of 72
6. A box of fruit weighs 20 kg. It is divided into 8 parts on average. How many kg are the three parts? (write the formula and answer)
7. A bamboo pole is 11 / 18 meters long, which is divided into 9 parts on average. How long are 7 parts? (write the formula and answer)
8. Nine tenths of a carton of milk. Dad, mom and Xiao Jun drank one third, two ninths and four ninths of the milk respectively. How many liters did they drink?
Kneel down and ask for it at 7:30
No need to answer question 8

1. 6 and 2 / 3
2、0
3. 2 and 1 / 3
4. The denominator remains the same, only the molecules are added
5、35/72
6. 20 × 3 / 8 = 15 / 2 (kg)
7. 18 / 11 × 7 / 9 = 14 / 11 (m)
8. 9 / 10 × 1 / 3 = 3 / 10 (L)
9 / 10 × 2 / 9 = 1 / 5 (L)
9 / 10 × 4 / 9 = 2 / 5 (L)

A mathematics test was conducted in class one of grade six. The average score of the whole class was 87. The average score of boys was 84.6, and that of girls was 88.8
The ratio of students to girls

Let X be the number of boys and y be the number of girls
(84.6X+88.8Y)/(X+Y)=87
1.8Y=2.4X
X/Y=3/4
A: the ratio of boys to girls is 3:4