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January 31, 2015

January 31, 2015

Posted by **Anonymous** on Sunday, December 23, 2012 at 1:02pm.

please explain ?????

- maths -
**Steve**, Sunday, December 23, 2012 at 3:27pmj-40 = 1/2(a)

r+20 = a-20

a-20 = j

Robin has 80

Atul has 120

Jai has 100

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