How much muriate of potash will be required to supply 50 kg K₂O/ha

Muriate of potash or potassium chloride is a red-white crystal containing 60% potassium oxide. It is extensively used for fertilizing pastures, sugar cane, fruit trees, vegetables and other field crops.
If 50 kg of K₂O/ha is needed to be supplied we need 83.3 kg of potash as 60% of 83.3 kg will be approximately 50, thus this much is needed.