Poll

3 votes (13.63%)
2 votes (9.09%)
14 votes (63.63%)
3 votes (13.63%)

22 members have voted

ThatDonGuy
ThatDonGuy
Joined: Jun 22, 2011
  • Threads: 65
  • Posts: 2925
January 10th, 2017 at 6:36:27 PM permalink

The solution to each equation is the product of the two numbers plus the smaller one. The order of the equations is irrelevant.
1 x 4 + 1 = 5
2 x 5 + 2 = 12
3 x 6 + 3 = 21
8 x 11 + 8 = 96

RS
RS
Joined: Feb 11, 2014
  • Threads: 49
  • Posts: 5113
January 10th, 2017 at 11:53:51 PM permalink
Using the subtotal method:
x+y = f(x,y) = SUM[x, y, f(x-1, y-1)] where X > 0 OR Y > 0


-3+0 = -3
-2+1 = -1-3 = -4
-1+2 = 1-4 = -3
0+3 = 3-3 = 0
1+4 = 5+0 = 5
2+5 = 7+5 = 12
3+6 = 9+12 = 21
4+7 = 11+21 = 32
5+8 = 13+32 = 45
6+9 = 15+45 = 60
7+10 = 17+60 = 77
8+11 = 19+77 = 96

Using f(x,y) = x*(y+1) method:
f(8,11) = 8*(11+1) = 8*12 = 96



Like ME said -- there are many formulas that lead to the same answer....or that at least follow the pattern.



BTW, 5 does not exist in base 5.

5 in decimal is 10 in base-5: 1*5^1 + 0*5^0 Just like 2 in decimal is 10.
"should of played 'Go Fish' today ya peasant" -typoontrav
MaxPen
MaxPen
Joined: Feb 4, 2015
  • Threads: 10
  • Posts: 948
January 11th, 2017 at 10:16:02 PM permalink
I think people are overthinking the problem. Sometimes you just have to strike the nail on the head. The answer is 40. Just my opinion.
odiousgambit
odiousgambit
Joined: Nov 9, 2009
  • Threads: 274
  • Posts: 7174
January 12th, 2017 at 6:44:07 AM permalink
if there is no official answer, then this math exercise is perfect for the Millennials. Everybody is right and and we all get a trophy for participating!
"We thank with brief thanksgiving Whatever gods may be That no man lives forever, That dead men rise up never" Nor any gambler the long run see ever ........apologies to Swinburne for that last line
Romes
Romes
Joined: Jul 22, 2014
  • Threads: 25
  • Posts: 3925
January 12th, 2017 at 6:50:39 AM permalink
Quote: odiousgambit

if there is no official answer, then this math exercise is perfect for the Millennials. Everybody is right and and we all get a trophy for participating!

https://www.youtube.com/watch?v=-HFwok9SlQQ
Playing it correctly means you've already won.
Wizard
Administrator
Wizard 
Joined: Oct 14, 2009
  • Threads: 957
  • Posts: 16118
January 12th, 2017 at 8:37:44 AM permalink

96.

Each number of the right side of the equation equals x*(y+1), where x is the first number and y is the second.

8*(11+1) = 96
It's not whether you win or lose; it's whether or not you had a good bet.
IndyJeffrey
IndyJeffrey
Joined: Feb 10, 2013
  • Threads: 6
  • Posts: 91
January 12th, 2017 at 8:40:07 AM permalink
Quote: RS

Using the subtotal method:
x+y = f(x,y) = SUM[x, y, f(x-1, y-1)] where X > 0 OR Y > 0


-3+0 = -3
-2+1 = -1-3 = -4
-1+2 = 1-4 = -3
0+3 = 3-3 = 0
1+4 = 5+0 = 5
2+5 = 7+5 = 12
3+6 = 9+12 = 21
4+7 = 11+21 = 32
5+8 = 13+32 = 45
6+9 = 15+45 = 60
7+10 = 17+60 = 77
8+11 = 19+77 = 96

Using f(x,y) = x*(y+1) method:
f(8,11) = 8*(11+1) = 8*12 = 96



Like ME said -- there are many formulas that lead to the same answer....or that at least follow the pattern.



Thanks for making me feel less than knowledgable. I just looked for a pattern and came up with 96.
odiousgambit
odiousgambit
Joined: Nov 9, 2009
  • Threads: 274
  • Posts: 7174
January 13th, 2017 at 3:32:13 AM permalink
Quote: Romes

https://www.youtube.com/watch?v=-HFwok9SlQQ



[video says there is no 'Millennials' generation ]

I may be stepping on some toes to rag on the M-gen, so from now on I will pick on Generation Z ....... LOL
"We thank with brief thanksgiving Whatever gods may be That no man lives forever, That dead men rise up never" Nor any gambler the long run see ever ........apologies to Swinburne for that last line

  • Jump to: