| LIST I | LIST II | ||
| A. | Repeator | I. | converts one form of energy into another |
| B. | Bandwidth | II. | information converted in electrical form and suitable for transmission |
| C. | Transducer | III. | A combination of a receiver and a transmitter |
| D. | Signal | IV. | portion of the spectrum occupied by the signal |
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?