Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Tie no | Home team | Score | Away team | Attendance |
| --- | --- | --- | --- | --- |
| 1 | Aston Villa | 0–1 | Coventry City | 14 February 1998 |
| 2 | Sheffield United | 1–0 | Reading | 13 February 1998 |
| 3 | Newcastle United | 1–0 | Tranmere Rovers | 14 February 1998 |
| 4 | West Ham United | 2–2 | Blackburn Rovers | 14 February 1998 |
| Replay | Blackburn Rovers | 1–1 | West Ham United | 25 February 1998 |
| West Ham United won 5–4 on penalties | West Ham United won 5–4 on penalties | West Ham United won 5–4 on penalties | West Ham United won 5–4 on penalties | West Ham United won 5–4 on penalties |
| 5 | Manchester United | 1–1 | Barnsley | 15 February 1998 |
| Replay | Barnsley | 3–2 | Manchester United | 25 February 1998 |
| 6 | Wimbledon | 1–1 | Wolverhampton Wanderers | 14 February 1998 |
| Replay | Wolverhampton Wanderers | 2–1 | Wimbledon | 25 February 1998 |
| 7 | Arsenal | 0–0 | Crystal Palace | 15 February 1998 |
| Replay | Crystal Palace | 1–2 | Arsenal | 25 February 1998 |
| 8 | Leeds United | 3–2 | Birmingham City | 14 February 1998 |
Question:
Which tie number had an away team of the Tranmere Rovers?
Answer:
3.0