Multiple choice In agriculture, a 'chain' contains ...... metres. 20.1168 21.1168 15.1168 18.1168 Reveal answer Fill a bubble to check yourself A Correct answer Explanation In surveying, a standard Gunter's chain is 66 feet long. Converting 66 feet to meters (using 1 foot = 0.3048 meters) gives 66 * 0.3048 = 20.1168 meters.