How to weigh any weight from 1 to 40 using four weights whose sum is 40KG? A merchant has a 40 kg weight which he used in his shop. Once, it fell from his hands and was broken into 4 pieces. But surprisingly, now he can weigh any weight between 1 kg to 40 kg with the combination of these 4 pieces.

1

Answers

2015-11-13T20:43:44+05:30
1+3+9+27=40
9-3+1=5
9-3=6
9+1-3=7
9-1=8
9+3-1=11
27-9-3-1=14

0