Question

The average marks of the students in four sections A, B, C
and D together is 60%. The average marks of the students of
respectively. If the average marks of the students of sections
A, B, C and D individually are 45%, 50%, 72% and 80%
A and B together is 48% and that of the students of B and C
together is 60%. What is the ratio of number of students in
sections A and D?

Answer 1

30:50 nice question