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The average weight of A, B and C is 45 kg. If the average weight of A and B be 40 kg and that of B and C be 43 kg....... [CLOSED]

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The average weight of A, B and C is 45 kg. If the average weight of A and B be 40 kg and that of B and C be 43 kg, then what is the weight of B?

posted Jul 2, 2016 by Anil Chaurasiya

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1 Answer

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A+B+C=135
A+B=80
80+C=135
C=135-80
C=55
B+C=86
B+55=86
B=86-55
B=31

answer Jul 3, 2016 by Abey Joseph
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