# Math Help - Number Pattern

1. ## Number Pattern

The numbers in the brackets follow the same pattern

[2,6,24] [3,2,15] [7,5,X]

Find the value of X

2. ## Re: Number Pattern

Hello, KayPee!

The numbers in the brackets follow the same pattern: .[2, 6, 24] .[3, 2, 15] .[7, 5, X]

Find the value of X.

The pattern seems to be: . $[a,\,b,\,3(a+b)]$

Therefore: . $[7,\,5,\,36]$

3. ## Re: Number Pattern

Originally Posted by Soroban
Hello, KayPee!

The pattern seems to be: . $[a,\,b,\,3(a+b)]$

Therefore: . $[7,\,5,\,36]$

Just curious Soroban. Did you intuit the relation or did you have an analytical way?

-Dan

4. ## Re: Number Pattern

I can't be certain but I suspect Soroban tried a number of calculations until one worked.

5. ## Re: Number Pattern

Hello, HallsofIvy!

That's exactly what I did.

6. ## Re: Number Pattern

I have gotten complaints about constantly telling people on this and other boards to try something!