Question

In a school there are a total of 50 students in class X
who are divided into three sections A B and C
Sections A and B have an equal number of students
All the students of the class wrote a test. The average
marks obtained by the students of sections A and B
together is 52.5. The average marks obtained by the
students of sections A and C together is 60. The
average marks obtained by the students of sections B
and C together is 70. The average marks obtained by
the students of sections A, B and C together is 60. How
many students are there in section C?
(A) 10
(B) 20
(C) 15
(D) Cannot be determined​

Answer 1

Answer:

D

Step-by-step explanation:

because A and B is 60. And A,B and C is 60. so, the value of C is 0