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9. Commercial arithmetic
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Q4 of 59 Page 147

If 55% of students in a school are girls and the number of boys is 270, find the number of girls in the school.

Given: %age of girls in the school = 55%


Number of boys in the school = 270


⇒ 45% of students in the school are boys.


Let total students be x


According to the question,


45% of x = 270



⇒ x = 600


Number of girls = 600 – 270 = 330


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Questions · 59
9. Commercial arithmetic
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