In a row of boys, Sandeep is eleventh from the right and Deepak is also eleventh from the left. When Sandeep and Deepak interchange their positions, Deepak become seventeenth from the left. How many boys are there in the row?
In a row of boys, Sandeep is eleventh from the right and Deepak is also eleventh from the left. 
When Sandeep and Deepak interchange their positions, Deepak become seventeenth from the left. 
Therefore, there will total 27 boys are there in row.
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