Question

What is minimum number of weights that can measure 1, 2, 3, 4, 5, 6, 7 and 8 kg?

Answer 1

Average number of weight = sum of observation /total number observation

1+2+3+4+5+6+7+8. 36 9
-------------------------- =. - - - - - =. --- =4.5
8 8. 2
That minium weight can measure 4.5



Hope it help