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Average weight of 25 persons is increased by 1 kg when one man weighing 60 kg is replaced by a new person. Weight of new person is :
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- 50 kg
- 61 kg
- 86 kg
- 85 kg
- 50 kg
Correct Option: D
According to question ,
Total weight increased = 1 × 25 = 25 kg
∴ Weight of new person = weight of man + Total weight increased
Weight of new person = 60 + 25 = 85 kg
Second method to solve this question with the help of given formula :
Here, N = 25, T = 60 , t = 1
Weight of New person = T + Nt
Weight of New person = 60 + 25 × 1 = 85 Kg
