Q66
ArithmeticAverages & Ages
Average weight of 25 persons is increased by 1kg when one man weighing 60 kg is replaced by a new person. Weight of new person is
- a.50 kg
- b.61 kg
- c.86 kg
- d.85 kg
Answer: (D) 85 kg
An increase of 1 kg in the average of 25 persons means the total rose by 25 kg. So the new person weighs 60 + 25 = 85 kg. 61 kg adds only the 1 kg rise in the average.