please help me solve math problem

Mathematics
Tutor: None Selected Time limit: 1 Day

Apr 28th, 2015

It would be choice B because n would represent the difference between the total number of boys and girls who rode on Friday and Saturday.

Apr 28th, 2015

thankyou for your response..I have one question...how do you know that N represents the difference between the total number of boys and girls who rode on Friday and Saturday.

Apr 28th, 2015

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Apr 28th, 2015
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Apr 28th, 2015
May 23rd, 2017
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