Airstud wrote:Everyone on the Facebook thread seems to have gotten 34 or 45.
I'm the only one out there (I think) who got 37.
casinterest wrote:I could make a strong argument for 37. but it includes making an assumption of the questioners intent on missing a line. So I stand by 45
ANITIX87 wrote:casinterest wrote:I could make a strong argument for 37. but it includes making an assumption of the questioners intent on missing a line. So I stand by 45
How can you make an argument for 37? I put in the argument for 34, but I can't get 37 no matter what assumptions I make.
casinterest wrote:If you assume that the real equation is N=(x+(y*z)) where y is the line number. so the last line would be 5+(4*8)=37 Like I said, it works out, but it is not logical based on the fact that the missing numbers (4+7) would fall apart if reintroduced.
ANITIX87 wrote:casinterest wrote:I could make a strong argument for 37. but it includes making an assumption of the questioners intent on missing a line. So I stand by 45
How can you make an argument for 37? I put in the argument for 34, but I can't get 37 no matter what assumptions I make.
ANITIX87 wrote:there is a row missing
[...]
It's a silly problem, as it's not mathematically correct and the lack of information means it sort of has two answers, as I've shown, if you assume that only the rows presented exist in the problem.
ANITIX87 wrote:casinterest wrote:If you assume that the real equation is N=(x+(y*z)) where y is the line number. so the last line would be 5+(4*8)=37 Like I said, it works out, but it is not logical based on the fact that the missing numbers (4+7) would fall apart if reintroduced.
Interesting, my mind never went in that direction. .
Airstud wrote:Everyone on the Facebook thread seems to have gotten 34 or 45.
I'm the only one out there (I think) who got 37.
ANITIX87 wrote:It's a silly problem, as it's not mathematically correct and the lack of information means it sort of has two answers, as I've shown, if you assume that only the rows presented exist in the problem.
ANITIX87 wrote:The correct answer is 45.
For those who get 45:
Formula is x + y = z, where the result is taken by doing x + (x * y) = z.
Therefore, 1 + 4 = 1 + (1 * 4) = 5. For the last row, 5 + 8 = 5 + (5 * 8) = 45.
This is the ONLY correct answer which works for any x and y values.
For those who get 34:
Formula is x + y = z, where the result is taken by doing x + y + ("result from previous row") = z.
Using that, 5 + 8 = 5 + 8 + 21 = 34. However, there is a row missing for 4 + 7 so you cannot prove that this is the formula.
This DOES NOT work for all x and y values since you need information on previous instances, which negates the premise of a formula.
It's a silly problem, as it's not mathematically correct and the lack of information means it sort of has two answers, as I've shown, if you assume that only the rows presented exist in the problem.
TheFlyingDisk wrote:4+7? Shouldn't it be 5+7 = 12?
ANITIX87 wrote:TheFlyingDisk wrote:4+7? Shouldn't it be 5+7 = 12?
No, the last two rows are:
3 + 6 = 21
5 + 8 = ??
The missing row is, therefore, 4 + 7.
DLFREEBIRD wrote:i got 45 following a pattern, but since it said 97% of you would get it wrong and almost everyone here says 45
maybe the answer is hiding in plain sight and is just 12?
.
TheFlyingDisk wrote:But you're assuming that a row is missing. If you assume that there's no missing rows then the answer is correct!
ANITIX87 wrote:TheFlyingDisk wrote:But you're assuming that a row is missing. If you assume that there's no missing rows then the answer is correct!
5+7 doesn't appear anywhere in the problem.
TheFlyingDisk wrote:It's 2+5+5 on the second equation
ANITIX87 wrote:TheFlyingDisk wrote:It's 2+5+5 on the second equation
What? That has nothing to do with what I was saying and with what I thought you were saying. Run through the problem row by row and tell me what you're doing.
TheFlyingDisk wrote:It's exactly what you're saying = X + Y + (result from previous row) = Z
1) 1 + 4 + (0) = 5
2) 2 + 5 + (5) = 12
3) 3 + 6 + (12) = 21
4) 5 + 8 + (21) = 34
Quantos wrote:34 seems correct when you go with the assumption that the values given are the only one in the series. If there is indeed a 4+7 not shown, but implied, then 45 would be the only answer. Pedantic me would say that there is no indication of a missing row, like a "..." or "[...]", so I'm saying 34 is absolutely a correct answer based on the parameters provided!