1. Each of 196 candidates has a candidate number from 3001 to 3196.

The candidates sit in numerical order in columns and rows, as shown in the diagram.

There are 20 rows.

The diagram shows part of the plan for where the candidates sit.

i) The diagram shows where candidates $A$ and $B$ sit.
Write down their numbers.

$A$ ..................................
       $B$ ..................................  [2]

ii) Complete this statement.
Candidate 3135 sits in Column .......................... , Row ..........................

[2]

iii) Candidate C sits in Column $n$, Row 1.
Find an expression, in terms of $n$, for the number of candidate C.

[2]