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प्रश्न
The average weight of 8 person's increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person?
विकल्प
76 kg
76.5 kg
85 kg
Data inadequate
MCQ
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उत्तर
85 kg
Explanation:
Total weight increased = (8 × 2.5) kg = 20 kg.
Weight of new person= (65 + 20) kg = 85 kg.
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