Kate wanted to buy 2kg of apples.The vendor kept the 2kg on the right side and weighed 4 apples for that.She doubted on the correctness of balance and placed 2kg weight on left side and she could weight 14 apples for 2kgs.If the balance was correct how many apples she would have got?

• since vendor kept 2 kg on the right side and weighed 4 apples on the left side and
  when weight and apple were exchanged no of apple were 14.so he has kept a hidden weight on left side.
  solution
  let hidden weight be x kg
  2kg=xkg+4apples-(1)
  2kg+xkg=14apples-(2)
  solving (1)&(2)
  we get xkg=5apples
  therefore for 2kg she gets 5+4=9apples
• 11 years agoHelpfull: Yes(56) No(0)
• let addition weight is x kg.
  4Apple+x=2kg
  14apple=2+x kg
  14A-x=2kg
  
  solving 2 eq we get,
  18A=4kg
  9 apple=2kg.
• 11 years agoHelpfull: Yes(11) No(0)
• Let the additional weight on the left side be x.
  Let the average weight of an apple be a.
  
  x+4a = 2kgs
  x+2 = 14a
  
  Solving, a=2/9kgs.
  Hence for 2 kgs she should have got 2/2/9 = 9 apples.
  
• 11 years agoHelpfull: Yes(2) No(1)
• to balance the weight we have to add 2.5kg weight on right side..
  so ans =9
• 11 years agoHelpfull: Yes(1) No(0)
• 9 apples
• 11 years agoHelpfull: Yes(0) No(1)
• nice explanation
• 10 years agoHelpfull: Yes(0) No(1)