20 kg has to buy within 20 rupees with
price of 1kg fish 20rupess
1kg onion 1rupee
1kg sugar 25paisa..you should buy each one so that total weight become 20 kg you have 20rupees

• 0.75 kg fish for Rs 15
  0.25 kg onion for Rs 0.25
  
  19 kg sugar for Rs 4.75
• 11 years agoHelpfull: Yes(15) No(4)
• take 750 gm fish
  take 250 gm onion
  take 19 kg sugar
• 7 years agoHelpfull: Yes(1) No(0)
• The price of onion is Rs 1 per kg, so the ratio of fish and sugar has to be identified
  i,e 1:19.75
  i,e 3:76
  multiply by 2
  6:152
  1 unit is equal to 100 gm
  hence
  Fish 600 gm = 12.00
  Sugar 15kg200gm=3.80
  rest is onion i,e=4kg 200gm=4.20
  20 kg in 20 Rs
• 5 years agoHelpfull: Yes(0) No(0)
• 0.75 kg fish for Rs 15
  0.25 kg onion for Rs 0.25
  
  19 kg sugar for Rs 4.75
• 4 years agoHelpfull: Yes(0) No(0)