The average age of the 6 people in Room A is 40. The average age of the 4 people in Room B is 25. If the two groups are combined, what is the average age of all the people?<spanclass=′latex−bold′>(A)</span>32.5<spanclass=′latex−bold′>(B)</span>33<spanclass=′latex−bold′>(C)</span>33.5<spanclass=′latex−bold′>(D)</span>34<spanclass=′latex−bold′>(E)</span>35