There would be 25 people in the line. There are 6 people between jane and ken k - - - - - - j there are 18 people ahead of jane including ken - - - - - - - - - - -k - - - - - - j and 13 people behind ken including jane - - - - - - - - - - -k - - - - - - j - - - - - - if you add all of the dashes up from the row above, you will get your answer of 25 people in the line
