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re: what is the answer to this facebook math problem?
Posted on 2/2/17 at 1:14 am to SlapahoeTribe
Posted on 2/2/17 at 1:14 am to SlapahoeTribe
quote:
quote:
The pattern is a*b+a = c.
Or a*(b+1) = c
lolwut
n = 1: 1 + 4 = 5
n = 2: 2 + 5 = 12
n = 3: 3 + 6 = 21
n = 8: 8 + 11 = 96
The pattern is as follows, where the multiplication of the second term by n is implicit in the problem as stated, which is the trick:
n + n(3+n) = x
This is another illustration of what I was talking about earlier, why 96 is the best answer. Its pattern doesn't require making a special case out of the first equation, which you must do to get 40.
Posted on 2/2/17 at 1:25 am to Spock's Eyebrow
quote:
This is another illustration of what I was talking about earlier, why 96 is the best answer. Its pattern doesn't require making a special case out of the first equation, which you must do to get 40.
To arrive at the correct answer you have to know the question, where in the information given is it indicated that the answer involves a relationship between the four equations?
Posted on 2/2/17 at 9:43 am to Spock's Eyebrow
quote:
The pattern is a*b+a = c.
Or a*(b+1) = c
These equations are equivalent.
The second is the simplified version of the first.
Posted on 2/2/17 at 9:50 am to Spock's Eyebrow
quote:
n + n(3+n) = x
Why not just say n^2 + 4n = x?
Either way, all of this philosophical arguing is stupid. The set of equations are very clearly put in place so you will have to determine what the plus sign means.
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