Answers

2016-01-18T17:09:29+08:00
Partitive Proportion.. 
1 + 2 = 3
6 ÷ 3 = 2
2 (1) = 2 - removed
2 (2) = 4 - remaining

1 : 2 = 2 : 4

Therefore, the answer to your questions are
a. 2 m
b. 4 m
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