The average age of seven boys sitting in arow facing North is 26 years. If the average age of first three boys is 19 years and the average age of last three boys is 32 years,what is the age of the boy who is sitting in middle of the row ?

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BANK PO Exam (Punjab And Sind Bank) 2010 click here to view all questions

The average age of seven boys sitting in arow facing North is 26 years. If the average age of first three boys is 19 years and the average age of last three boys is 32 years,what is the age of the boy who is sitting in middle of the row ?

A 28 years

B29 years

C 24 years

D31 years

Nithin K ? May 21 '2017 at 12:17

Answer is : 29 years

Explanation   

Age of the fourth boy = \((26 \times 7 - 3 \times 19 - 3 \times 32) \)years

= \((182 - 57 - 96) \)years

= \(29\) years

 

 

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Answer is : 29 years Explanation    Age of the fourth boy = \((26 \times 7 - 3 \times 19 - 3 \times 32) \)years = \((182 - 57 - 96) \)years = \(29\) years     Nithin K ? answered May 21 '2017 at 12:17 All Comments

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