Question

Question # 2
Revisit
The average marks of three classes, A, B, and C are 30, 50, and 70, respectively. If the average marks
of classes A and B together is 45, and that of classes B and C together is 65, what is the average
marks of all the three classes put together?​

Answer 1

Answer:

110

Step-by-step explanation:

avarage ab =45

average bc=65

45+65=110

Answer 2

Answer:

110

Step-by-step explanation:

this answer needs to be 20 character long so I have an idea