foreverfaizan foreverfaizan

24-01-2019
Mathematics

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The proportion of boys students and girls students in a school is 2:1 . Now if the total number of students is 510 then know the number of girls.

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Rosekitty Rosekitty

24-01-2019

2x +1x=510
3x=510
x=510/3
x=170

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