The average age of 40 employees in a branch of a bank is 35 years. When a new employee joined the bank the average age increased to 35.5 years. What is the age of the new employee?
ক. 55.5
খ. 50
গ. 50.5
ঘ. 20.5
উত্তর: 55.5
ব্যাখ্যা: Total age of 40 employees [গণিত] years Total age of 41 employees [গণিত] 1455.5 years Age of the new employee [গণিত] years
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