The average weight of 8 people increases by 5 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person?
সমাধান
সঠিক উত্তর: Option A
Total weight increased = (8 x 2.5) kg = 20 kg.
Weight of new person = (65 + 20) kg = 85 kg.