मानोना बे रुजुथाया उलथा बेसेननि बांसिन आरो बेनि उनाव बेयो खम जालांगासिनो थायो , बेनिखायनो बेफोर बेसेनफोरनि थाखोआव 60 किलʼग्राम नाइट्रजेन हासार बाहायनाया आबादारिफोरनि थाखाय मोजांसिन मुलामफा ।
In the case of price of fertilizer being 200 Rs per kilogram and price of wheat 100 Rs per quintal , 60 kilograms of fertilizer is the maximum profit giving level because at this level ratio of surplus produce and amount of surplus production equipment is 0.025 when the inverse ratio of their prices is 0.020 .