School-Safe Puzzle Games

OrangeTriangles: Math pattern problem

cool-math-problem-patterns

What number should replace the question mark?

Feel free to enter your answer in the comment section below; will unmask submission by Wednesday, thanks!

30 Comments to “OrangeTriangles: Math pattern problem”


  1. marioberges | Profile

    Every triangle has three numbers besides the center one. I will call them x, y, z for (top, left and right) and c for the center one.


    The formula is:


    c = x * z + y * z


    For example, in the first triangle:


    36 = 4 * 3 + 8 *3


    In the last triangle, we need to solve for y, so we have:


    30 = 6 * 3 + y * 3


    y = (30 – 6 * 3) / 3


    y = 4


  2. Obiwan | Profile

    Question mark is 4.
    o Red circle is sum of left lower and upper numbers in each triangle multiplied by right lower number.
    o 1st triangle: 3×4 + 3×8 = 36
    o 2nd triangle: 4×8 + 4×5 = 52
    o 3rd triangle: 30 – (3×6)/3 =12. Missing number is 12/3 = 4.


  3. Obiwan | Profile

    Oops–left out brackets!
    [30-(3x6]/3 = 4


  4. goofymushu | Profile

    i think its 4


  5. Reka | Profile

    It’s a four!


  6. kitchen | Profile

    4 (30 = 3*(4+6))


  7. Falwan | Profile

    pattern :


    (8+4)(3) = 36


    (5+8)(4) = 52


    (6+?)(3) = 30 —-> ?=4


  8. bigbossSNK | Profile

    I can find two algorithms, with the same outcome:
    1. Multiply the bottom right number with the other two, sum the products and you get the middle number. Solution: 4
    Or
    2. Multiply the smallest number among the corner numbers with the other two, sum the products and you get the middle number. Solution (a little harder): 4.


  9. joe | Profile

    The question mark should be a 4.


    In each of the former triangles the centre circle is the result of adding the top number and the lower left number and multiplying the sun by the lower right number.
    In the first two:
    (8 + 4) x 3 = 36
    (5 + 8) x 4 = 52
    So in the third triangle
    ( 6 + ? ) x 3 = 30
    ? = 10


  10. joe | Profile

    Sorry that should be ? = 4 of course


  11. hex | PUZZLE MASTER | Profile

    4
    (8+4)x3=36
    (5+8)x4=52
    (6+4)x3=30


  12. Mashplum | PUZZLE MASTER | Profile

    4


    (top + left) * right = center


  13. suineg | PUZZLE MASTER | Profile

    cool I think one answer could be this:
    first triangle: (8+4)*3= 36
    second triangle: (5+8)*4= 52
    third triangle: (6+4)*3= 30
    so the answer is 4


  14. Shawn | PUZZLE GRANDMASTER | Profile

    4


  15. moyes | Profile

    Is the answer 4.
    6×3= 18, 3×4= 12, 18+12 =30
    _______________________
    Triangel 1:
    8×3=24, 3×4= 12, 24+12=36
    ____________________
    Triangel 2:
    8×4=32, 4×5= 20, 32+20= 52


  16. nattlebattle | Profile

    4!


    (Top + Bottom Left) * (Bottom Right) = Middle
    (8 + 4) * (3) = 36
    (5 + 8) * (4) = 52
    (6 + 4) * (3) = 30


  17. Jimmy Anders | PUZZLE MASTER | Profile

    If the pattern is that the middle number (red) is the sum of the two numbers on the left multiplied by the third number, then the answer is 4.


    [6 + 4] * 3 = 30


  18. Hercules | Profile

    the answer is 4
    36 divide by 3 is 12…8 and 4 are 12
    52 divided by 4 is 13…5 and 8 are 13
    30 divided by 3 is 10…6 and ’4′ are 10


  19. Oneiric | Profile

    I’d say 4.


    Let’s call the top number T, the bottom left number BL, the bottom right number BR and the center number C.


    C = T * BR + BL * BR


    Figure 1: 36 = 8 * 3 + 4 * 3 (24 + 12)
    Figure 2: 52 = 5 * 4 + 8 * 4 (20 + 32)


    Figure 3: 30 = 6 * 3 + BL * 3
    30 = 18 + BL * 3
    Previous minus 18: 12 = BL * 3
    Previous divided by 3: 4 = BL


  20. Shofnite | Profile

    (8+4) * 3 = 36
    (5+8) * 4 = 52
    (6+x) * 3 = 30


    x = 4


  21. Blusummers13 | Profile

    The answer is 4.
    8*3+4*3=36
    5*4+8*4=52
    6*3+x*3=30 x=4


  22. RK | Founder | Profile

    very good- 4 is the answer


  23. 10dulkar | Profile

    Oh did anyone mention 4 yet? LOL


Enter an Answer/Comment/Reply

To comment log in or register for a free Smartkit account.

Recent Comments Sign In