You've got 27 coin, each of them is 10 g, except for 1. The 1 different coins has a masses different. It could be 9 g, or 11 g (heavier, or lighter by 1 g).

The question is, in how many minimum ways, you can determine the different coins, and is it heavier, or lighter?

## Question

## Guest

You've got 27 coin, each of them is 10 g, except for 1. The 1 different coins has a masses different. It could be 9 g, or 11 g (heavier, or lighter by 1 g).

The question is, in how many minimum ways, you can determine the different coins, and is it heavier, or lighter?

I have no answer to this question.

Do you?

## Link to comment

## Share on other sites

## Top Posters For This Question

5

3

3

2

## Popular Days

Jan 18

6

Jan 16

3

Mar 31

3

Jun 18

2

## Top Posters For This Question

Prime5 postsbonanova3 postsbhramarraj3 postsdifabor2 posts## Popular Days

Jan 18 2008

6 posts

Jan 16 2008

3 posts

Mar 31 2008

3 posts

Jun 18 2007

2 posts

## 83 answers to this question

## Recommended Posts

## Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.