Tennentslager Posted June 1, 2016 Share Posted June 1, 2016 1+4=5 2+5=12 3+6=21 8+11=? Link to comment Share on other sites More sharing options...
daiking Posted June 1, 2016 Share Posted June 1, 2016 (edited) 52? edit: doh, using the same series I've identified I should have said 96. 8 + 11*4 = 52 doesnt follow. When I know it should be 4x + x^2 Edited June 1, 2016 by daiking Link to comment Share on other sites More sharing options...
Bornagain Posted June 1, 2016 Share Posted June 1, 2016 40. Link to comment Share on other sites More sharing options...
Guest Alphonsox Posted June 1, 2016 Share Posted June 1, 2016 96 Link to comment Share on other sites More sharing options...
Bornagain Posted June 1, 2016 Share Posted June 1, 2016 c'mon guys, it's not as complicated as you are thinking...... Link to comment Share on other sites More sharing options...
Tennentslager Posted June 1, 2016 Author Share Posted June 1, 2016 96 for me... Link to comment Share on other sites More sharing options...
Stones Posted June 1, 2016 Share Posted June 1, 2016 40 Link to comment Share on other sites More sharing options...
ProDave Posted June 1, 2016 Share Posted June 1, 2016 Can someone post some reasoning as I can't make sense of it. All I see is incorrect sums so you are asking me to guess the answer of the last incorrect sum? I started thinking ah, they must be adding up in base 6, but you can't have more than a number 5 then can you so that only works for the first 2. Link to comment Share on other sites More sharing options...
Crofter Posted June 1, 2016 Share Posted June 1, 2016 96 from me too. It's not as hard as you think, Dave! Link to comment Share on other sites More sharing options...
ProDave Posted June 1, 2016 Share Posted June 1, 2016 Give me a clue as I am obviously over thiking it. Link to comment Share on other sites More sharing options...
reddal Posted June 1, 2016 Share Posted June 1, 2016 I dont think there is a single right answer - there are many patterns - several give 96, one gives 40, another 201. You could probably construct any answer with a complex enough rule. If the question becomes which pattern is the most elegant? Well its a bit subjective... Link to comment Share on other sites More sharing options...
Calvinmiddle Posted June 1, 2016 Share Posted June 1, 2016 96 Link to comment Share on other sites More sharing options...
Mikey_1980 Posted June 1, 2016 Share Posted June 1, 2016 (edited) 40 1+4=5 2+5=7+5 from the Previos Answer =12 3+6=9+12 from the previous answer =21 8+11=19+21 from the previous answer = 40 Edited June 1, 2016 by Mikey_1980 Link to comment Share on other sites More sharing options...
Ferdinand Posted June 1, 2016 Share Posted June 1, 2016 (edited) 96. RHS = First Number + (First Number * Second Number) or C = A(1+B) Edited June 1, 2016 by Ferdinand Link to comment Share on other sites More sharing options...
Redoctober Posted June 1, 2016 Share Posted June 1, 2016 8 hours ago, Mikey_1980 said: 40 1+4=5 2+5=7+5 from the Previos Answer =12 3+6=9+12 from the previous answer =21 8+11=19+21 from the previous answer = 40 Spoiler ! 40 for me and thankfully got there before scrolling down - a nice little teaser from after a long and wet commute Link to comment Share on other sites More sharing options...
Construction Channel Posted June 1, 2016 Share Posted June 1, 2016 Im sticking with 96. if you were to go down the road of getting 40, surely you would need to fill in the rest of the sequence 4+7=11+21=32 5+8...... and so on so the answer wouldn't be 40 anyway Link to comment Share on other sites More sharing options...
ProDave Posted June 1, 2016 Share Posted June 1, 2016 8 hours ago, Mikey_1980 said: 40 1+4=5 2+5=7+5 from the Previos Answer =12 3+6=9+12 from the previous answer =21 8+11=19+21 from the previous answer = 40 But on that logic, should you have not done the whole sequence including the sums not shown, 4+7, 5+8, 6+9, and 7+10 then finally adding the total to the 8+11 sum? Link to comment Share on other sites More sharing options...
Construction Channel Posted June 1, 2016 Share Posted June 1, 2016 1 4 5 2 5 12 3 6 21 4 7 32 5 8 45 6 9 60 7 10 77 8 11 96 9 12 117 10 13 140 11 14 165 12 15 192 13 16 221 14 17 252 15 18 285 16 19 320 Guess what it comes out as anyway although i should say i got there the first time by (8x11)+8=96 Link to comment Share on other sites More sharing options...
Nickfromwales Posted June 1, 2016 Share Posted June 1, 2016 I got 96 but thought I'd left it too long to get any credibility. Ed, step away from the calculator. Link to comment Share on other sites More sharing options...
Construction Channel Posted June 2, 2016 Share Posted June 2, 2016 next question is can someone elegantly explain why it works both ways? (A*B)+a=x and A+B+(previous x)=x not exactly similar ???? Link to comment Share on other sites More sharing options...
SteamyTea Posted June 3, 2016 Share Posted June 3, 2016 (edited) Not looked at anyone else's answers, but have seen this before. Change the + to * and add one to the second number. so 8+11 = 8*(11+1) = 8*12 = 96 Edited June 3, 2016 by SteamyTea I forgot BODMAS Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now