The average weight of A, B and C is 49 kg. If the average weight of A and B is 35 kg and that of B and C is 62 kg, then the weight of B (in kgs) is?
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A+B+C= 135 A+B= 80 B+C = 86 A+B+C - A+B 135- 80 = C = 55 B+C - C = 31 B = 31
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47 kg
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