Question 15
Buddy decorates a tree with four bows and fourteen balls. Prices in beaver dollars label the ornaments. Dashed lines lead left and solid lines lead right; for example 100,70,30,10,12 form one linked route. A tree is pretty if, for every ornament, prices in its left branch are smaller and prices in its right branch are larger. It is colourful if it is pretty, the top ornament is a ball, and every bow has two immediate ball children.
Which description is correct?
Which description is correct?