Question 1107941
if 3/5 are girls then 2/5 are boys, then let x be the total number of students
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(2/5) * x = 200
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2x = 1000
:
x = 500
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The total number of students in school is 500
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Note that (3/5) * 500 = 300 and 300 + 200 = 500
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