show divide step by step for 1.333244/21
who will anwer right l will mark as brainliest
Answers
Answer:
Hi......Riya is this okay.....
Step-by-step explanation:
The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmosphere, terrestrial, and marine ecosystems. The conversion of nitrogen can be carried out through both biological and physical processes.
Required Answer:-
Mean or Average is calculated by dividing the total sum of all items by the total number of items.
In this question, we have to add all the marks and divide it by total number of students.
Class - (1)
No. of students = 100
Mean marks = 30
Then, Total marks = 100 × 30 = 3000
Class - (2)
No. of students = 50
Mean marks = 60
Total marks = 50 × 60 = 3000
Find the mean marks of both classes:
= Total marks / Total no. of students
= 3000 + 3000 / 100 + 50
= 6000 / 150
= 40
\therefore∴ The mean marks of two classes taken together is 40 (Option A).
Note:-
Sometimes average is asked instead of mean. Both are synonymous to each other.
Always add the all total at the last for final answer.