List - I | List - II | ||
(A) | Lungs | (I) | Birds |
(B) | Gills | (II) | Insects centipedes |
(C) | Trachea | (III) | Fish |
(D) | Airsacs | (IV) | Mammals |
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?
\(2, 6, 12, 20, 30, \ ?\)