A sprayer having 0.4 L/min nozzle discharge rate and 50 cm width of coverage is required to apply 0.8 kg of active ingredient per hectare. If 1 kg of active ingredient is content in 120 L of spray solution. What will be the speed of travel of sprayer?
(a) 2 km/h
(b) 5 km/h
(c) 3 km/h
(d) 4 km/h
The question was asked in a job interview.
This intriguing question originated from Plant Protection Equipments in chapter Plant Protection Equipments of Farm Machinery