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![[Post New]](/templates/default/images/icon_minipost_new.gif) 30 May 2007 17:08:49 IST
Accepted Answer [?]
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a = 1.2 kg
b = 5.42g = 0.00542
see its very simple
i when we add we get 1.20542 ..but in a only the first decimal figure is significant
therefor all the other figure after the second decimal are insignificant.
now we have to round off the second decimal figure 0. The digit next to it is 5 n 0 is even ... therefore it is left unaltered . Thus the answer is 1.20 kg.
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In the process of learnin..............blunders do happen !!! |
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