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A college has 1000 students. Ratio of male to female lecturers = 2:3. Total lecturers = 1/10 of students = 100. Lecturers present on Monday = 20 more than male lecturers. Students present on Monday = 10 times female lecturers. Find the ratio of students present on Monday to lecturers present on Monday.

1. 13:17
2. 10:1
3. 4:5
4. 6:7

Correct answer: 10:1

Solution

Total lecturers = 1000/10 = 100. Male:Female = 2:3 → Male=40, Female=60. Students on Monday = 10×Female lecturers = 10×60 = 600. Lecturers on Monday = 20+Male lecturers = 20+40 = 60. Ratio = 600:60 = 10:1.

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