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King

  • 3 years ago

Help............in the decimal number 33xy2y ,x and y represent digits. If the number is divisible by 275 find x. Help............in the decimal number 33xy2y ,x and y represent digits. If the number is divisible by 275 find x. @Mathematics

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  1. sheg
    • 3 years ago
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    338525

  2. King
    • 3 years ago
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    how?

  3. sheg
    • 3 years ago
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    x = 8 y = 5

  4. sheg
    • 3 years ago
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    see as it is divisible by 275 means y will be either 5 or, 0

  5. King
    • 3 years ago
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    yeah kk

  6. sheg
    • 3 years ago
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    and 275 = 5*5*11

  7. King
    • 3 years ago
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    yes

  8. sheg
    • 3 years ago
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    that is the resultant should be divisible by 11

  9. King
    • 3 years ago
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    yeah

  10. sheg
    • 3 years ago
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    thus the 33xy2y should be divisible by 11. That is the difference of sum of digits at odd place with the sum of digits at even places should be either 0 or, 11, or, multiple of 11

  11. sheg
    • 3 years ago
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    sum of odd place digits is 5+x and sum of even place digit is 3 +2y

  12. sheg
    • 3 years ago
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    Difference is (5+x) - (3+2y) it should be either 0 / 11/ multiple of 11

  13. sheg
    • 3 years ago
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    difference is 2 + x - 2y

  14. King
    • 3 years ago
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    yes

  15. sheg
    • 3 years ago
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    y can be either 0 or, 5

  16. sheg
    • 3 years ago
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    when y = 0 therefore we have 2 + x (it should be 0 / 11 / multiple of 11) but in no case it is possible so Y cannot be 0

  17. King
    • 3 years ago
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    possible 339020

  18. King
    • 3 years ago
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    x=9 y=0

  19. sheg
    • 3 years ago
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    so when y = 5 then we have 2 + x - 2*5 = 2 + x -10 = -8 + x

  20. sheg
    • 3 years ago
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    yes but then it is not divisible by 275

  21. sheg
    • 3 years ago
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    if x = 9 in that case it is not divisible by 275

  22. King
    • 3 years ago
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    oh

  23. sheg
    • 3 years ago
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    so it cannot be 9

  24. sheg
    • 3 years ago
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    now we got -8 + x for what value of x u will have either 0 / 11 / multiple of 11

  25. King
    • 3 years ago
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    ok thnx u always make me understand thnx a lot...............!!!!!!!!

  26. sheg
    • 3 years ago
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    so got the point how many rules u have to apply.........

  27. King
    • 3 years ago
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    yeah

  28. sheg
    • 3 years ago
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    another thing that u can do is use short cut that is calculator......hahaha satisfied with the answer

  29. King
    • 3 years ago
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    yup 100% satisfied

  30. sheg
    • 3 years ago
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    hey actually u tried to understand the thing other pplare just interested in answers not in the procedure so i gave u a medal

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