Find the Angles of a Triangle If It Is Known $n , 4 n - 15 , \text { and } 4 ( 40 - n )$

Multiple Choice

Find the angles of a triangle if it is known that the measures of the angles are $n , 4 n - 15 , \text { and } 4 ( 40 - n )$ .

A) $70 ^ { \circ } , 250 ^ { \circ } , 40 ^ { \circ }$
B) $175 ^ { \circ } , 145 ^ { \circ } , 40 ^ { \circ }$
C) $30 ^ { \circ } , 105 ^ { \circ } , 130 ^ { \circ }$
D) $40 ^ { \circ } , 15 ^ { \circ } , 125 ^ { \circ }$
E) $35 ^ { \circ } , 125 ^ { \circ } , 20 ^ { \circ }$