Question

Of 85c-340A=1009 and 425A+85B=1286 then what is the average of A,B,C

Answer 1

Answer:

9

Explanation:

85c -340a =1009                                      ...(i)

425a+85b=1286                                       ...(ii)

add both the equations

85(a + b + c)=2295

a + b +c = 27

average of a,b,c=a +  b + c/3

=27/3

=9

Hope u understood the explaination.