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The average weight of 5 persons is 60 kg. A new person joins and the average rises to 62 kg. Find the weight of the new person.
  1. 70 kg
  2. 72 kg
  3. 75 kg
  4. 80 kg
Explanation

Given:

  • Average weight of 5 persons = 60 kg
  • New average of 6 persons = 62 kg

Step 1: Total weight of 5 persons

5 × 60 = 300kg

Step 2: Total weight of 6 persons

6 x 62 = 372kg

6 times 62 = 372text{ kg}

Step 3: Weight of the new person

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