Question

average of four number A,B,C,D is 40 .average of four number A,B,E,F is also 40.which is following is correct​

Answer 1

Answer:

ABCD

Step-by-step explanation:

it's true. because if we take one no as 10 then we can perfectly determine..

Answer 2

Answer:

(A+B+C+D)=40×4=160

(A+B+E+F)=40×4=160

so,

(A+B+C+D)=(A+B+E+F)

so,

C+D=E+F.