A little cerebral exercise

[griff]

I didn't understand it even when I was told the answer

Here goes Chalky................

Frenchy gave 4 clues:

(1). 7 6 1 9 = Two good numbers but not correctly positioned

(2). 4 7 6 3 = No good numbers

(3). 0 4 5 1 = One good number but not correctly positioned

(4). 5 9 4 2 = Two good numbers and correctly positioned

(5). The code is made up of 4 different numbers

Forget the order of the clues, it’s just there to confuse you. Look at (5) first because it says that all the numbers in the code are different. Then look at (2) - none of the numbers are there so the four different numbers must be either 0, 1, 2, 5, 8 or 9. We’ll call this “the list”.

Now look at (1). The only 2 numbers on the list are 1 and 9 so now we have 2 numbers in the code.

Now look at (3). Only one of the numbers is in the code and we already know that it’s 1 as demonstrated in the last paragraph. That also means that 0 and 5 are NOT in the code. The only numbers left in our list are 1,2, 8 and 9.

(4) shows us that the 9 and the 2 are correctly positioned so the code is _9_2. From (1) we can see that the 1 cannot be the third number, so it must come first and the remaining number, 8, will be third.

Hence 1982.

[cocopops61]

That hasn't helped tbh honest Griff infact it's probably confused me even more

[frenchlion]

That hasn't helped tbh honest Griff infact it's probably confused me even more

Are you Tricky in disguise?

[Tricky1966]

Don't worry coco, They are to intellectual for us peasants to understand

[cocopops61]

Don't worry coco, They are to intellectual for us peasants to understand

I was always rubbish at maths at school Tricky,75% of my class got good marks in it but unfortunately I was always in the other 30%

[griff]

It’s nowt to do with maths. It’s a a LOGIC puzzle.

[cocopops61]

It’s nowt to do with maths. It’s a a LOGIC puzzle.

Aye I know that Griff but my joke wouldn't have worked if I had said that I was rubbish at logic at school would it?

[gaz1959]

You're not thick coco or trick.

The person that can't count and left the 8 out of the puzzler is tho

[cocopops61]

You're not thick coco or trick.

The person that can't count and left the 8 out of the puzzler is tho

Thank fo.ok for that and full marks to gaz and 100 lines of "I must check my answers before handing it in" to Griff

It just didn't make sense but at least I know that I'm not as thick as my exam papers suggest that I am

[cocopops61]

I'm presuming that gaz had the correct answer all along then?