IKMC 2027 - Grades 7-8 - Self-study SET 13 - Thematic Batch 3 Question 11

Michael labels the eight edges of quadrilateral pyramid V.ABCD with 2,3,6,7,8,9,10,15 so that the sum of labels at each vertex is the same. Six labels are erased, leaving the two shown. What is the label L on VA?