In the following questions, a question is followed by data in the form of two statements labelled as I and II. You must decide whether the data given in the statements are sufficient to answer the questions.
How many students are there in the school?
(I) Out of the total number of girl in the school, 25% belong to age group below 10 years and these are 150 in number.
(II) The ratio of girls to boys in the school is 5 : 7.
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