The average age of 12 students is 20 years. If the age of one more student is included the average decreases by 1, what is the age of the new student?

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Age Problems

প্রশ্নঃ The average age of 12 students is 20 years. If the age of one more student is included the average decreases by 1, what is the age of the new student?

  • ক. 5
  • খ. 7
  • গ. 9
  • ঘ. 11

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