2022_IAS_Qn A80. The average weight of A, B, C is 40 kg, the average weight of B, D, E is 42 kg and

The average weight of A, B, C is 40 kg, the average weight of B, D, E is 42 kg and the weight of F is equal to that of B. What is the average weight of A, B, C, D, E and F? (a)    40.5 kg (b)    40.8 kg (c)     41 kg (d)    Cannot be determined as data is inadequate