To arrange the housekeeping department personnel in top-to-bottom hierarchical order below the level of Executive Housekeeper, consider the standard hierarchy in a typical hotel:
Therefore, the hierarchical order is: (A), (C), (D), (B)
.
The hierarchical order in the housekeeping department, starting from the top below the level of Executive Housekeeper, is as follows:
Thus, the correct order is (A), (C), (D), (B).
The following data shows the number of students in different streams in a school:
Which type of graph is best suited to represent this data?
What comes next in the series?
\(2, 6, 12, 20, 30, \ ?\)