4.2.1 Conversions, Part 2
The following are additional conversions that have appeared on recent exams:
Key Conversions
| Conversion | Value |
|---|---|
| 1 sq. mile | 640 acres |
| 1 mile | 320 rods |
| 1 rod | 16.5 feet |
| 1 bushel | 4 pecks |
| 1 day | 1440 minutes |
Helpful Derivations
The rod conversions are especially helpful for unusual fractions of miles:
- 1 mile = 320 rods × 16.5 feet/rod
- Using Double and Half: 1 mile = 160 × 33 feet = 5280 feet
Tip: Knowing that a day is minutes can lead to quick reductions!
Problem Set 4.2.1
Practice these problems. Type your answer and press Enter to check:
15 pecks = ___ bushels
1/11 mile = ___ feet
44 bushels = ___ pecks
160 acres = ___ sq. miles
1/8 mile = ___ rods
1/44 mile = ___ feet
2 days 7 hrs 12 min = ___ min