An animal drawn seed drill has k number of furrow openers 180mm apart. If the speed of the operation is 2.0kmph then the area covered (ha), in 8 hr day is given by:
a) 1.85/1000k
b) 28.8 * 10-2k
c) k/6.456
d) 1.762k
a) 1.85/1000k
b) 28.8 * 10-2k
c) k/6.456
d) 1.762k