1 rs=20 sparrow
1 rs=1 peacock
5 rs=1 crow
total rs =100,total count of birds =100
condition:must 3 birds should be selected?

• 80 sparrow, 1 peacock, 19 crow
  
  Here a+p+c=100 ---(i) and
  (1/20)s + p + 5c=100 => s+20p+100c=2000 ---(ii)
  Subtracting (i) from (ii), 19p + 99c=1900 => p=100 - 99c/19 ---(iii)
  For c=19, p=1, so s=100-(c+p)=80
  Thus total count 80+1+19=100 and amount = (1/20)*80 + 1*1 + 5*19 = 100
• 6 years agoHelpfull: Yes(2) No(0)
• 4 rs=80 sparrow
  95 rs=19 crow
  1 rs=1 peacock
  total is 100 rs=100 birds.
• 2 years agoHelpfull: Yes(0) No(0)