A meeting is attended by 750 students. 450 of the students are females. Half the female students are less than thirty years old, and one-fourth of the male students are less than thirty years old. If one of the students of the meeting is selected at random to receive a prize, what is the probability that the person selected is not less than thirty years old?

• ক 3/5 ✅ সঠিক উত্তর
• খ 2/5
• গ 1/5
• ঘ 7/13