Answers

2016-07-02T14:29:33+08:00
The answer is 4422. When you round it off, it answers to 4000. The digit 4 which is in the hundreds place is twice the digit 2 which is in the tens place. When you add 4+4+2+2, it will sum up to 12. And as you see, we only used two different digits: 4 and 2.
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