Answers

2014-11-13T19:55:46+05:30
Let x be the number of television and y be the number of AC

A) 4x+4y = 120000
    4(x+y) = 120000 
     x+y = 30000

Similarly 
B) 6x+4y = 170000
    2(3x+2y) = 170000
    3x+2y = 85000

From A , x = 30000-y
       
Introducing this value of x in B) 

3(30000-y) +2y = 85000
90000- 3y +2y =85000
90000-y = 85000
y=5000

therefore x = 30000-5000= 25000

Hence cost per TV = 25000 and AC = 5000
Therefore cost of 2 TV and 2 AC = 2*25000 +2*5000 = 60000
0
but in first step you took as 4 AC but it is 3 AC.... can u modify it and post it again??? please
Which one do you want to change. Please clarify. I will change.