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  • Brainly User
2014-07-26T16:15:32+05:30

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Concert all quantities to grams
i kilogram = 1000 grams

18kg 200 g = 18200 grams
13 kg 250 g = 13250 grams
25 kg.           =25000 grams

on adding we get 56450 grams
in kilograms we write it as 56 kg 450 grams
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2014-07-26T16:19:51+05:30

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We must see to it that all are in grams

18 kg = (18×1000)g =18000 g
                                   200 g 
13 kg = (13×1000)g = 13000 g
                                    250 g
25 kg = (25×1000)g = 25000 g

Addition of quantities =(18000+200+13000+250+25000) g= 56450 g

Convert to kg = 56450/1000 kg = 56.450 kg


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