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  • Math Problem

    My cousin in the Philippines recently sent me a pic of some of the math questions from her daughter's recent math test. I was equally surprised and felt completely stupid because I spent 30 minutes and still couldn't figure out the answer. Let's see if someone here can figure it out. And btw, the girl is int he 3rd grade!


    Find the next number in the sequence.
    5611, 111223, 232447

    I reject your reality and substitute my own.

  • #2
    I should think the next number is 474895

    Reasoning:

    5 + 6 = 11, so 5611

    now take the last result (11), add it to the next number (12),
    11 + 12 = 23, so 111223

    again, take the result (23), add the next (24)
    23 + 24 = 47, so the number is 232447

    now, take the result (47) and add the next number(48)
    47 + 48 = 95, so the next number is 474895
    It is the mark of an educated mind to be able to entertain a thought without accepting it.
    - Aristotle

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    • #3
      Well I feel even dumber. I was thinking it was some weird geometric/arithmetic sequence. You got it radhak.
      I reject your reality and substitute my own.

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      • #4
        Originally posted by radhak View Post
        I should think the next number is 474895

        Reasoning:

        5 + 6 = 11, so 5611

        now take the last result (11), add it to the next number (12),
        11 + 12 = 23, so 111223

        again, take the result (23), add the next (24)
        23 + 24 = 47, so the number is 232447

        now, take the result (47) and add the next number(48)
        47 + 48 = 95, so the next number is 474895
        That's what I got as well
        --------------------------------------------------
        Electrical Engineer by day, Woodworker by night

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        • #5
          Great math problem to get minds running. Now my question...... what use is this line of thought in the real world?

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          • #6
            Originally posted by capncarl View Post
            Great math problem to get minds running. Now my question...... what use is this line of thought in the real world?
            As a problem, it tests your ability to see patterns.
            As an answer, it tests your ability to express an algorithm for performing a given task/problem.
            Loring in Katy, TX USA
            If your only tool is a hammer, you tend to treat all problems as if they were nails.
            BT3 FAQ - https://www.sawdustzone.org/forum/di...sked-questions

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            • #7
              Originally posted by capncarl View Post
              Great math problem to get minds running. Now my question...... what use is this line of thought in the real world?
              It's called pattern recognition skills.

              These skills are useful in a lot of fields.
              basically, any time there's data that needs to be understood.

              Geologists use it to find oil. Doctors use it to monitor infectious disease. SETI uses it to find martians. THE FBI uses it to catch crooks. Woodcraft uses it to figure out who to send coupons to.

              I use it at my college to figure out which students are at risk of failing.

              in our data saturated world, there's a pretty good market for people who can turn data into knowledge.

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              • #8
                I've had a few whiskies tonight, so I can't answer this. Friends don't let friends drink and derive.

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                • #9
                  Originally posted by durango dude View Post

                  It's called pattern recognition skills.

                  These skills are useful in a lot of fields.
                  basically, any time there's data that needs to be understood.

                  Geologists use it to find oil. Doctors use it to monitor infectious disease. SETI uses it to find martians. THE FBI uses it to catch crooks. Woodcraft uses it to figure out who to send coupons to.

                  I use it at my college to figure out which students are at risk of failing.

                  in our data saturated world, there's a pretty good market for people who can turn data into knowledge.
                  I agree 100%.

                  But, in politics, this is often seen as targeting and profiling, of which ad agencies use in selling. Ad agencies must be discreet in their wording and training. I don't think I would be good at creating ads as my INTP'ness prefers to state the obvious without regard to feelings - in the manner of Sheldon on "The Big Bang" - according to what my girls say!

                  (Early "pattern recognition" is a common characteristic of INTPs. For an INTP to state what they see developing before everyone else does gets them labeled quickly. )
                  Last edited by leehljp; 10-19-2019, 09:56 AM.
                  Hank Lee

                  Experience is what you get when you don't get what you wanted!

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