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A number rounds off 4000 the digit in the hundred places is twice the digit in the tens place. The sum of the digit is 12 . the number uses only two different digits .find the number

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6 answers

  1. I assume you are rounding to the nearest thousand

    since it rounds to 4000, the hundreds digit could only be 0,1,2,3, or 4 if the number starts with a 4
    or
    only 5,6,7,8,9 if it starts with a 3
    but the hundreds digit is twice the tens, so the hundreds digit must be even

    so cases:
    363X , sum of digits so far is 12 , so # is 3630
    384X , sum of digits so far is 15 , not possible
    421X , sum of digits so far is 7 , so # is 4215
    442X, sum of digits so far is 10 , so # is 4422

    so it could be 3630, 4215, or 4422

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  2. 4422

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  3. What number whose sum of its digits is 26, becomes 6000, when rounded to the nearest thousand? list 3 possible asnswer

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  4. 6+11+9=26
    6+12+8=26
    6+13+7= 26

    6119, 6128 & 6137 are all rounded in the nearest thousand to 6000

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  5. A number rounds off 4000 the digit in the hundred places is twice the digit in the tens place. The sum of the digit is 12 . the number uses only two different digits .find the number

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  6. rounded number

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