Average weight of 25 persons is increased by 1 kg when one person weighing 60 kg is replaced by a new person. Weight of new the person is-

A. 50 kg

B. 61 kg

C. 86 kg

D. 85 kg

Answer: Option D

Solution(By Examveda Team)

Let the weight of 25 person's = 25x kg
And the new person's weight = y kg
According to the question,
⇒ 25x - 60 + y = 25 (x +1)
⇒ 25x - 60 + y = 25x + 25
⇒ y = 85 kg