Question 3172
 
   let the no.of pigs  =  x
 
   let the no.of chicken = y
 
   pigs have 4 legs and chicken have 2 legs each
 
   so, the equation will be as under:
 
   x + y = 41 .............   (1)   given.
 
   4x + 2y = 100  .........   (2)   given.
(1) * 2, we get
 
   2x + 2y = 82 ...........   (3)
(2) - (3), we get
   2x  =  18  
 
   So  x  = {{{18/2}}} = 9
 
   by replacing the value of x in (1), we get
 
   9 + y =41
 
   So y =41-9 = 32.
 
   No.of pigs = 9;  chicken = 32.   Answer
 
 
   
   gsm