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Could someone please help me out on this question? Many thanks

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1 Answer 1

up vote 1 down vote accepted

Look at the table and subtract two values. In particular, it would be $112.5-50.10 = 62.4$

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Thanks alot PEV! Just realised how silly am I not understanding the question. –  Alvin Feb 1 '11 at 1:09

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