Question

what is the weight of B
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Answer 1

Answer:

31 kg

Step-by-step explanation:

the average of 40 and 43 is 41.5 but there is no 41.5

so,the answer

is 31 kg

Answer 2

Answer:

Step-by-step explanation:

The average weight of AB 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 the weight of B is

Weight of B=(40*2+43*2)-45*3=31Kg. Average weight of A, B and C is 45 kgs.. Total weight of A, B and C is 45 × 3 = 135..14-Jul-2020