The postorder and preorder traversal of a binary tree are given below debfgca

Afour-year college’s application process takes into account all of the following except

17 a tourist was planning a trip by car for travelling at some constant speed for 2.5 hours. however, he found that if he increases the speed by 20 km/h he can cover the same distance in 30 minutes less time than it was planned. what was the planned speed of the tourist, in km/h?

Igot a 80% on my final to os ya take these points in return