Multiple choice

The average weight of 60 children of a class is 38.5 kg ,when five more children with weights 41.6 kg ,36.8 kg, 38.8 , 42.2 kg and 36.6 kg join the class the average weight of the 65 children in the class is- एक कक्षा के 60 बच्चों का औसत भार 38.5 किग्रा है, तब उस कक्षा में 41.6 किग्रा. 36.8किग्रा. 38.8 किग्रा. 42.2 किग्रा.और 36.6 किग्रा. के पांच बच्चे और आ गये तो कक्षा के 65 बच्चों का औसत भार है-

  1. 38.5 kg/ किग्रा

  2. 36.6 kg/ किग्रा

  3. 39.4 kg/ किग्रा

  4. 41.2 kg/ किग्रा
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Total weight of 60 children = 60 × 38.5 = 2310 kg. Weight of 5 new children = 41.6 + 36.8 + 38.8 + 42.2 + 36.6 = 196 kg. New total = 2506 kg. New average = 2506 ÷ 65 ≈ 38.55 kg, which rounds to 38.5 kg. Option A is correct.

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