The average weight of A, B and C is 44 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:	Select
A) 33 kg	B) 34 kg	C) 32 kg	D) 36 kg	E) 37 kg
Let A, B, C represent their respective weights.   Then, we have: A + B + C = (44 x 3) = 132 .... (i)   A + B = (40 x 2) = 80 .... (ii)   B + C = (43 x 2) = 86 ....(iii)   Adding (ii) and (iii), we get: A + 2B + C = 166 .... (iv)   Subtracting (i) from (iv), we get : B = 34.   B's weight = 34 kg.   34 kg
<result>B</result>
The average weight of A, B and C is 44 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: