1 Answers

Option 3 : 73

Given 

The average weight of 10 person = 53 kg 

Weight of new person = 63 kg

Formula Used 

Average = Sum of data/Number of data 

Calculation 

Let the weight of replaced person be x 

Total weight of 10 persons = 53 × 10 = 530 

⇒ 530 + 63 - x = 52 × 10 

⇒ x = 73 kg

∴ The required answer is 73 kg

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