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Average age of ten persons learning yoga is 32 years. When the age of their instructor is added, the average age becomes 34 years. The age of the instructor is –
1. 54
2. 52
3. 46
4. 56

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Correct Answer - Option 1 : 54

Given:

Average age of 10 persons = 32 years 

Average age of 11 persons including instructor = 34 years

Formula used:

Average age = Sum of the ages of persons/No of persons 

Calculation:

Total age of 10 persons = 32 years × 10 = 320 years

Total age of 11 persons including instructor = 34 years × 11 = 374

∴ The age of instructor = 374 - 320 = 54 years

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