In a class of 70 student 40 belong to the red Cross society 27 belong to the girls guide society and 12 belong to both red Cross society and the girls guide society. The remaining student do not belong to any of the two societies.

1.How many students do not belong to any of the two societies

To find the number of students who do not belong to any of the two societies, we need to subtract the total number of students in both societies from the total number of students in the class.

Total number of students = 70
Number of students in the Red Cross society = 40
Number of students in the Girls Guide society = 27
Number of students in both societies = 12

Total number of students who do not belong to any of the two societies = Total number of students - Number of students in both societies
= 70 - (40 + 27 - 12)
= 70 - 55
= 15

Therefore, 15 students do not belong to any of the two societies.

To find the number of students who do not belong to any of the two societies, we need to subtract the total number of students who belong to one or both of the societies from the total number of students in the class.

Total number of students in the class = 70
Number of students in the Red Cross Society = 40
Number of students in the Girls Guide Society = 27
Number of students in both societies (Red Cross and Girls Guide) = 12

To find the number of students who do not belong to any of the two societies:
Total number of students who belong to one or both of the societies = Number of students in Red Cross Society + Number of students in Girls Guide Society - Number of students in both societies
= 40 + 27 - 12
= 55 - 12
= 43

Therefore, there are 43 students who do not belong to any of the two societies.

To find out how many students do not belong to any of the two societies, we need to subtract the number of students who belong to either the Red Cross society or the Girls Guide society from the total number of students in the class.

The total number of students in the class is 70.

Out of these, 40 students belong to the Red Cross society, 27 students belong to the Girls Guide society, and 12 students belong to both societies.

To find the number of students who do not belong to any of the two societies, we need to calculate the sum of students belonging to either society and subtract it from the total number of students.

So, the number of students who do not belong to any of the two societies would be:
Total number of students - (Number of students in Red Cross society + Number of students in Girls Guide society - Number of students in both societies)

= 70 - (40 + 27 - 12)
= 70 - 55
= 15

Therefore, there are 15 students who do not belong to any of the two societies.