A Difficult Math

WaiWai

Senior member
Jul 13, 2004
283
0
0
A Difficult Math

12 (21) 26

16 (30) 36

20 (38) 48

24 (54) 60

28 ( ? ) 84

Each numeral series stands on its own.
Ther relationship is among the first/second/third numbers.
The relationship is the same for each numeral series.
But each numeral series does not affect each other.
 

DaShen

Lifer
Dec 1, 2000
10,710
1
0
12 (21) 26
x3
16 (30) 36
x3
20 (38) 48
x3
24 (54) 60
x3
28 ( ? ) 84

Hope that helps...

**EDIT**
Nevermind, that combonation doesn't work.
 

DaShen

Lifer
Dec 1, 2000
10,710
1
0
doh

**EDIT**

This is frustrating the heck out of me.

Anyone know what this is? I ran a whole bunch of combonatorics and got discrepencies.
 

TheStu

Moderator<br>Mobile Devices & Gadgets
Moderator
Sep 15, 2004
12,089
45
91
ok ive got it

subtract the first number from the second, and multiply that number by 1.5...

so;

12 (21) 26 (26 - 12 = 14... 14 * 1.5 = 21)

16 (30) 36 (36 - 16 = 20... 20 *1.5 = 30)

20 (38) 48

24 (54) 60

28 ( ? ) 84 (84 - 28 = 56... 56 * 1.5 = 84)

the last answer is 84
 

sao123

Lifer
May 27, 2002
12,653
205
106
Originally posted by: TheStu
ok ive got it

subtract the first number from the second, and multiply that number by 1.5...

so;

12 (21) 26 (26 - 12 = 14... 14 * 1.5 = 21)

16 (30) 36 (36 - 16 = 20... 20 *1.5 = 30)

20 (38) 48 (48 - 20 = 18... 18 * 1.5 = 42) NOPE

24 (54) 60

28 ( ? ) 84 (84 - 28 = 56... 56 * 1.5 = 84)

the last answer is 84

 

TheStu

Moderator<br>Mobile Devices & Gadgets
Moderator
Sep 15, 2004
12,089
45
91
it works for the fourth, but not the thrid... weird.... back to the drawing board i suppose....

sao, your math is a little off.... the theory still incorrect, but your 18 should be a 28.
 

MotionMan

Lifer
Jan 11, 2006
17,124
12
81
Originally posted by: TheStu
ok ive got it

subtract the first number from the second, and multiply that number by 1.5...

so;

12 (21) 26 (26 - 12 = 14... 14 * 1.5 = 21)

16 (30) 36 (36 - 16 = 20... 20 *1.5 = 30)

20 (38) 48

24 (54) 60

28 ( ? ) 84 (84 - 28 = 56... 56 * 1.5 = 84)

the last answer is 84

Originally posted by: ender11122
i thought that too but it doesnt work for the 3rd and fourth number

But,

60 - 24 = 36 ... 36 * 1.5 = 54

Then again, for "20 (38) 48" you get 42. I guess it is the answer to everything. ;)

MotionMan
 

MrDudeMan

Lifer
Jan 15, 2001
15,069
94
91
Originally posted by: TheStu
ok ive got it

subtract the first number from the second, and multiply that number by 1.5...

so;

12 (21) 26 (26 - 12 = 14... 14 * 1.5 = 21)

16 (30) 36 (36 - 16 = 20... 20 *1.5 = 30)

20 (38) 48

24 (54) 60

28 ( ? ) 84 (84 - 28 = 56... 56 * 1.5 = 84)

the last answer is 84

this is wrong
 

sao123

Lifer
May 27, 2002
12,653
205
106
Originally posted by: TheStu
it works for the fourth, but not the thrid... weird.... back to the drawing board i suppose....

sao, your math is a little off.... the theory still incorrect, but your 18 should be a 28.


yah, it was just a mistype. I calculated 28, just typed 18. because 1.5 * 18 is def not 42.
 

DaShen

Lifer
Dec 1, 2000
10,710
1
0
Originally posted by: TheStu
ok ive got it

subtract the first number from the second, and multiply that number by 1.5...

so;

12 (21) 26 (26 - 12 = 14... 14 * 1.5 = 21)

16 (30) 36 (36 - 16 = 20... 20 *1.5 = 30)

20 (38) 48

24 (54) 60

28 ( ? ) 84 (84 - 28 = 56... 56 * 1.5 = 84)

the last answer is 84

but this fails because on the 3rd one
48-20 = 28 *1.5 = 42 /= 38
 

Kelemvor

Lifer
May 23, 2002
16,928
8
81
I can make all kinds of patterns work for the first 4 but they all fail on the last one...
 

WaiWai

Senior member
Jul 13, 2004
283
0
0
Originally posted by: TheStu
ok ive got it

subtract the first number from the second, and multiply that number by 1.5...

so;

12 (21) 26 (26 - 12 = 14... 14 * 1.5 = 21)

16 (30) 36 (36 - 16 = 20... 20 *1.5 = 30)

20 (38) 48

24 (54) 60

28 ( ? ) 84 (84 - 28 = 56... 56 * 1.5 = 84)

the last answer is 84


No, it won't work for the third series.
Your answer is 42, while it's 38!

I have thought of this.
But this is wrong.
 

WaiWai

Senior member
Jul 13, 2004
283
0
0
Originally posted by: FrankyJunior
I can make all kinds of patterns work for the first 4 but they all fail on the last one...

Hey, if you made it through the first 4, you got the answer, right?
The last series is unknown!

Anyway, could you post what you found, so we can discuss further?
Thank you.
 

DaShen

Lifer
Dec 1, 2000
10,710
1
0
Originally posted by: WaiWai
Originally posted by: FrankyJunior
I can make all kinds of patterns work for the first 4 but they all fail on the last one...

Hey, if you made it through the first 4, you got the answer, right?
The last series is unknown!

Anyway, could you post what you found, so we can discuss further?
Thank you.

QFT