There are 4 devices that can measure a total of 100 kg, one of them is of 0.5 kg and combining or singly these four can measure 0.5 kg to 100 kg what are there weight
2007-05-13 20:50:08 · 4 answers · asked by Vickydon 2 in Science & Mathematics ➔ Mathematics
The problem is a bit confusing. What are devices? If these are weights and you have a balance scale, the best you can do with four weights is 20kg (by .5 kg).
The weights to do this are .5, 1.5, 4.5, 13.5
Imagine writing the number of half kilograms in base 3 (with the digits -1, 0 1). Now if 1, put weight on pan opposite the object being weighed, if 0, leave that weight off, if -1, put on pan with the object being weighed.
So for example, 6,5 kg = 0111 4.5 + 1.5 + .5
7 1,-1,-1,-1 13.5 -4.5 -1.5 -.5
7.5 1,-1,-1,0 13.5 - 4.5 -1.5
2007-05-13 21:09:28 · answer #1 · answered by holdm 7 · 1⤊ 1⤋
Your question is unclear, but it seems all the items you want to weight are 0â5 kg or less in weight.
2007-05-14 03:58:10 · answer #2 · answered by Sparks 6 · 1⤊ 1⤋
Can you make the question a bit clearer. Your grammar's horrible. So must be the case with your IQ if you typed this sum down from a book.
2007-05-14 05:01:28 · answer #3 · answered by Akilesh - Internet Undertaker 7 · 0⤊ 1⤋
please be more clear. cant understand what u want.
2007-05-14 04:19:13 · answer #4 · answered by shankar 2 · 1⤊ 2⤋