23 December, the birthday of former Prime Minister Chaudhary Charan Singh, is celebrated every year as National Farmers’ Day. This day honors the contributions of Chaudhary Charan Singh, who was a prominent leader and advocate for farmers' rights. The celebration reinforces the importance of farmers in the economy and aims to raise awareness about their challenges and contributions.
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?
\(2, 6, 12, 20, 30, \ ?\)