This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and Health, Subject name: Social & Preventive Medicine
Total osmolarity of reduced osmolarity ORS - 
Select and explain. 
A. 270, B. 245, C. 290, D. 310
B: 245
Answer: B: 245 
Explanation: Ans. is 'b' i.e., 245 * Osmolarity of new ORS (reduced osmolarity ORS) is 245 mmol/litre.Composition of reduced osmolarity ORSReduced osmolarity ORSgrams/litreSodium chloride2.6Glucose, anhydrous13.5Potassium chloride1.5Trisodium citrate, dihydrate2.9Total weight20.5Reduced osmolarity ORSmmol/litreSodium75Chloride65Glucose, anhydrous75Potassium20Citrate10Total osmolarity245