That was my solution as well.

]]>I was thinking something like this:

If one shape fits perfectly inside the other one, then it is easy. Same also if one of the two dimensions are exactly the same (for example if the square is AxA and the rectangle BxC and A=B or A=C, then we compare the other sides only.

If, however, say, A>B and A<C then I guess we put one rug onto the other so that they have one common vertex (say, the lower left vertex) and then what?]]>

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Here are twelve of them:

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A similar program in BASIC:

```
x=1
y=2
d=1
ppd=0
WHILE d<13
ppd=ppd+x
x=x+y
y=y+1
d=d+1
WEND
PRINT ppd
```

And...welcome to the forum!

]]>Post 4567

]]>#33. Someone for every male child (6)

]]>Further - you have no way of knowing how many iterations the average person will make. But you could assume that the probability of x iterations decreases as x increases.

So the 1st iteration is that everyone would pick 300 as it is bigger.

The 2nd iteration is that 200 is a better bet if 6 or more people pick 300.

The 3rd iteration is that 300 is a better bet if 5 people get to iteration 2.

Etc etc.

The extra size of the kitty for voting 300 makes it the better choice in a large enough sample I think

]]>thickhead wrote:

]]>salem_ohio wrote:My approach - but not sure if it is correct...

We must discern the following 4 cases for A and B:

1) They make the same forecast and both are right: Probability P = 4/5*8/9 = 32/45

2) Same forecast and both are wrong: - P = 1/5*1/9 = 1/45

3) Different forecasts and A is right: P = 4/5*1/9 = 4/45

4) Different forecasts and B is right: P = 1/5*8/9 = 8/45In our case, we have A and B give different forecasts. In such cases, A is right with overall probability 4/45, while B is right with overall probability 8/45, that is double (that is, A: 1/3 while B: 2/3).

We are asking for the probability that it rains tomorrow, that is, the probability that B is right. I would therefore say that this is 2/3.

What do you think?You are telling same thing as Relentless but have put the value wrong.

3) must be 4/5*1/10 and

4) 1/5 *9/10

Both correct!

My HP 32SII (below), working 'perfectly well' again! I must've walked off with it, and the refund! I'll have to 'pay' the shop a visit...

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