The average weight of A, B and C is 75 kg. If the average weight of A and B be 88 kg and that of B and C be 72 kg, then the weight of B is: Select the correct option:
A) 60 kg
B) 59 kg
C) 62 kg
D) 63 kg
E) 61 kg
EXPLANATION   Let A, B, C represent their respective weights. Then, we have:   A + B + C = (75 x 3) = 225 â€¦. (i)   A + B = (88 x 2) = 176 â€¦. (ii)   B + C = (72 x 2) = 144 â€¦.(iii)   Adding (ii) and (iii), we get: A + 2B + C = 288 â€¦. (iv)   Subtracting (i) from (iv), we get : B = 63.   Bâ€™s weight = 63 kg.   Answer 63 kg
<result>D</result>
The average weight of A, B and C is 75 kg. If the average weight of A and B be 88 kg and that of B and C be 72 kg, then the weight of B is: