Answers

2014-11-04T20:13:26+08:00
Let 'x' be the common multiplier
so you'll have it as:
2x:3x:7x
2x + 3x + 7x = 312
12x = 312
x = 26
2x = 2(26)
     = 52
3x = 3(26)
     = 78
7x = 7(26)
     = 182
therefore the largest number is 182
2 2 2