How many scores are there in math problems?

Grade six students 100, and several girls (2/3) are boys.

Answer:

Because: boys are equivalent to girls (2/3), it can be seen that there are 5 books, 2 boys and 3 girls in the whole year. Girls account for 3/5 of the total number.

So:100x3/5 =100x0.6 = 60 (person)

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