SOLUTION: 100 students of a class are picked randomly and instructed to make a human chain such that every prime number position and perfect square positions are occupied by girls only and t

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Question 1053217: 100 students of a class are picked randomly and instructed to make a human chain such that every prime number position and perfect square positions are occupied by girls only and the rest are occupied by boys only. The ratio of the girls in the first 50 students to that of the number of girls in the next 50 students is ?
Answer by jorel555(1290) About Me  (Show Source):
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The first 50 numbers has 15 primes and 7 perfect squares, totaling 22 numbers. The second 50 numbers has 10 primes and 3 perfect squares totaling 13 numbers. So the ratio of girls in the first 50 students to that of the second is 22:13. ☺☺☺☺