The average weight of 7 persons increases by 1.5 kg. If a person weighing 65 kg is replaced by a new person, what could be the weight of the new person?
Choose the correct choice from the following options.
A) 76 kg	B) 77 kg	C) 75.5 kg	D) data inadequate	E) none of these

Rationale: "total weight increases = 7 × 1.5 = 10.5 kg so the weight of new person = 65 + 10.5 = 75.5 kg answer c"
Answer: C