The average weight of 5 students decreases by 4 kg when one of them weighing 92 kg is replaced by a new student. The weight of the student is	Pick one:	A) 62 kg	B) 60 kg	C) 70 kg	D) 72 kg	E) none of these

Rationale: "explanation : let the weight of student be x kg . given , difference in average weight = 4 kg = > ( 92 - x ) / 5 = 4 = > x = 72 answer : d"
Answer: D