A ship sails 4 degrees north, then 15 S. then 17 N. then 19 S. and has finally 11 degrees of south latitude. What was her latitude at starting ?
Choose the correct answer.
A) 0  B) 1  C) 2  D) 3  E) None of these
Let x = the latitude sought.   Then marking the northings +, and the southings -;   By the statement x + 4 - 15 + 17 - 19 = -11   And x =2.   Answer 2
<result>C</result>
A ship sails 4 degrees north, then 15 S. then 17 N. then 19 S. and has finally 11 degrees of south latitude. What was her latitude at starting ?