Read the information carefully and answer questions that follow:
(a) P, Q, R, S, T and U are six students preparing for their master’s degree in six different subjects– English, Physics, History, Statistics, Philosophy, Mathematics.
(b) Two of them stay in hostel, two stay as paying guest and the remaining two at their homes.
(c) R does not stay as PG and studies Philosophy.
(d) The students studying Statistics and History do not stay as paying guest.
(e) T studies Mathematics and S studies Physics.
(f) U and S stay in hostel. T stays as paying guest and Q stays at home
What comes next in the series?
\(2, 6, 12, 20, 30, \ ?\)
In a sequence of numbers, each term is generated by multiplying the previous term by 2 and then subtracting 1. If the first term is 3, what is the fourth term in the sequence?
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?