1. ## Numbers Everywhere

Which number is the odd one out in each of the groups below?

A) 159 367 589 258 486 679

[img]/forums/images/smilies/cool.gif[/img] 3,459 4,268 5,279 3,145 2,134 1,235

C) 2,743 9,418 6,813 2,917 9,461 3,724 1,972 4,819 1,836

D) 3 35 48 52 24 8 15

E) 133 171 208 247 285

2. ## Re: Numbers Everywhere

1) <span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold"> 367, it is the only prime number in the series</span hide>

3. ## Re: Numbers Everywhere

D <span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">52, the rest are n

4. ## Re: Numbers Everywhere

Good spot Tony <img src=/S/clapping.gif border=0 alt=clapping width=19 height=23>

5. ## Re: Numbers Everywhere

E. <span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">208, not evenly divisible by 19</span hide>

6. ## Re: Numbers Everywhere

Tony and Gary have nailed D and E. Congrats. <img src=/S/bullseye.gif border=0 alt=bullseye width=45 height=15>

I actually had a different solution for A but I like Jerry's better so extra credit is hereby awarded... <img src=/S/trophy.gif border=0 alt=trophy width=15 height=15>

Still to go - B & C

7. ## Re: Numbers Everywhere

[img]/forums/images/smilies/cool.gif[/img] <span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">3,459 - it's the only one in which the first digit is not the difference of the middle two digits (the last digit is the sum of the middle two)</span hide>

8. ## Re: Numbers Everywhere

Thanks Hans - We can place B in the solved column.
<img src=/S/cheers.gif border=0 alt=cheers width=30 height=16>

9. ## Re: Numbers Everywhere

<span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">9,461 - as the others are "paired" with another with the same digits.
2,743 - 3,724
9,418 - 4,819
6,813 - 1,836
2,917 - 1,972 </span hide>

10. ## Re: Numbers Everywhere

Tricky can you pass on your solution to A, it will be interesting to see <img src=/S/cheers.gif border=0 alt=cheers width=30 height=16>

11. ## Re: Numbers Everywhere

Gary - You got it <img src=/S/bullseye.gif border=0 alt=bullseye width=45 height=15>

Jerry - My other solution for A was <span style="background-color: #FFFF00; color: #FFFF00; font-weight: bold">486 - As it's the only number in the series where the digits are not in ascending numerical order.</span hide> See, I told you your solution was better <img src=/S/smile.gif border=0 alt=smile width=15 height=15>

12. ## Re: Numbers Everywhere

Now that I enjoyed....

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