Number Pattern

**KayPee** · October 11th 2012, 07:13 AM

The numbers in the brackets follow the same pattern

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

Find the value of X

**Soroban** · October 12th 2012, 12:40 PM

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

**topsquark** · October 14th 2012, 05:23 AM

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

**HallsofIvy** · October 14th 2012, 05:52 AM

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

**Soroban** · October 14th 2012, 02:39 PM

Hello, HallsofIvy!

That's exactly what I did.

**HallsofIvy** · October 22nd 2012, 02:08 PM

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

Thread: Number Pattern