Answers

2016-06-23T18:51:16+08:00
2 999 999 999. thats it so easy right it just the highest number that can be rounded to 3 000 000 000.

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2016-06-25T09:49:25+08:00
3 499 999 999 is the largest number that when rounde to nearest billions the result is 3 000 000 000
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