you have 20rs and you have to bye 20 fruit
1 mango cost 4rs
1 aple cost 50paise
1 banana cost 25paise
how many mango ,banana and apple you take at least one fruit from each catogery is required

• 3 mangoes , 15 apples and 2 banana
  
  Let the number of mangoes be 'x', apples be 'y' and banana be 'z'
  
  
  x + y + z = 20 ----(1)
  
  Price of 1 mango = Rs 4
  Price of 1 apple = Rs 0.50
  Price of 1 banana = Rs 0.25
  
  4x + 0.50y + 0.25z = 20 ----(2)
  
  equation (2)*2
  
  8x + y + 0.50z = 40---(3)
  
  equation (3)-(1)
  
  7x - 0.50z = 20
  ===> x > 3 because z is always positve integer
  
  when x = 3
  21 - 0.50z = 20
  ===> z = 2
  
  From (1) x+y+z = 20
  y = 15
  
  
  
  
• 10 years agoHelpfull: Yes(2) No(1)