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September 2, 2014

September 2, 2014

Posted by **Mayyday** on Friday, December 30, 2011 at 12:23pm.

(i need a model method to answer this)

- Maths Pri 5 -
**Damon**, Friday, December 30, 2011 at 1:18pms = .3 d

d = .4 b so s = .12 b

s + d + b = 608

.12 b + .4 b + b = 608

1.52 b = 608

b = 400

d = .4 b = 160

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