in a group of students,80% of the students weigh less than 60 kg and a total of 32 students weigh less than 50 kg .If 60% of the students weigh less than 50 kg. If 60% of the students weigh at least 50 kg.How many of the students weigh at least 50 kg but less than 60 kg?
সমাধান
সঠিক উত্তর: Option A
