Q. There was a big stone of 40 kg in grocery shop by which he used to weight. one day the stone fall down by his helper and break down in to four small pieces. inspite of being angry upon his helper the grocer said him thank you very much.because now he can weight all the weight using these pieces from 1 to 40 kg .find out the weights of four small pieces of stones

• @ Vishnu,
  
  If u r allowed to use weights on both sides of Pan of balance, then reqd weights are
  3^0,3^1,3^2,3^3, 3^4 .. so on.
  
  If u r restricted to use weights in one pan only, then reqd weights are
  2^0,2^1,2^2,2^3,2^4 ,.. so on.
• 12 years agoHelpfull: Yes(6) No(2)
• 1,3,9,27 kg stones
• 12 years agoHelpfull: Yes(4) No(1)
• @ Vishnu,
  
  Pls tell which weight u want to weigh?
  
  I shall explain .
  you can weigh any weight from 1 kg to 40 kg with these 4 stones.
• 12 years agoHelpfull: Yes(3) No(0)
• 
  @GARIMA CAN YOU EXPLAIN PLEASE HOW TO CALCULATE THESE NUMBER?
  
• 12 years agoHelpfull: Yes(1) No(0)
• 1,39,27 kg
• 12 years agoHelpfull: Yes(0) No(4)
• @Garima
  using 1,3,9,27 we can weight any weight that comes within range of 1 to 40 kg .
  but i am not getting logic how to decide that the pieces of stones are of weights 1,3,9,27 kg . is any trick is there to find this.
• 12 years agoHelpfull: Yes(0) No(2)
• @ Garima
  Thank you very much for this trick. it is very helpful.
• 12 years agoHelpfull: Yes(0) No(1)