bài toán hay

Thảo luận trong 'Số học' bắt đầu bởi thocon_hiephoa, 18 Tháng tám 2011.

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  1. anh dung day that tai!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
     
  2. khakhakhakhakhakhakha the oi!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
     
  3. sao lai 79%hay********************************************************************************************************************************************?!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
     
  4. lai le nau roi************************************************************************************************************************************************************************???????????
    sac nuoc qua!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
     
  5. lai le chan dui!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!??????
     
  6. hahahahahahaha!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    ac************************************************************************************************************************************************************************?????????????
     
  7. chi hai bai nau thoi!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    ac nuoc qua********************************************************************************************************************************************???????????
     
  8. thoi anh khong choi nua dau!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
     
  9. nhimcon_cute

    nhimcon_cute Guest

    70 chia hết cho 2 , 5 , 35, 12
    84 chia hết cho 2 , 4 , 3 , 6 , 7 , 42, 28 , 21 , 14, 12
    mà x > 8 vậy x=12

    12=3*2*2
    25=5*5
    30=5*2*3
    vậy ước nhỏ nhất là 3*2*2*5*5=300
    vậy x=300:D
     
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