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:
| Week | Date | Opponent | Result | Game site | Record | Attendance |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0 | September 16 | Cincinnati Bengals | W 28–10 | Mile High Stadium | 1–0 | 49059.0 |
| 2.0 | September 23 | San Francisco 49ers | L 34–36 | Mile High Stadium | 1–1 | 50966.0 |
| 3.0 | September 30 | Chicago Bears | L 14–33 | Mile High Stadium | 1–2 | 51159.0 |
| 4.0 | October 7 | at Kansas City Chiefs | L 14–16 | Arrowhead Stadium | 1–3 | 71414.0 |
| 5.0 | October 14 | at Houston Oilers | W 48–20 | Astrodome | 2–3 | 32801.0 |
| 6.0 | October 22 | Oakland Raiders | T 23–23 | Mile High Stadium | 2–3–1 | 51270.0 |
| 7.0 | October 28 | at New York Jets | W 40–28 | Shea Stadium | 3–3–1 | 55108.0 |
| 8.0 | November 4 | at St. Louis Cardinals | T 17–17 | Busch Memorial Stadium | 3–3–2 | 46565.0 |
| 9.0 | November 11 | San Diego Chargers | W 30–19 | Mile High Stadium | 4–3–2 | 51034.0 |
| 10.0 | November 18 | at Pittsburgh Steelers | W 23–13 | Three Rivers Stadium | 5–3–2 | 48580.0 |
| 11.0 | November 25 | Kansas City Chiefs | W 14–10 | Mile High Stadium | 6–3–2 | 51331.0 |
| 12.0 | December 2 | Dallas Cowboys | L 10–22 | Mile High Stadium | 6–4–2 | 51508.0 |
| 13.0 | December 9 | at San Diego Chargers | W 42–28 | San Diego Stadium | 7–4–2 | 44954.0 |
| 14.0 | December 16 | at Oakland Raiders | L 17–21 | Oakland-Alameda County Coliseum | 7–5–2 | 51910.0 |
Question:
What is the Week of the game with a Result of w 48–20?
Answer:
5.0