Question

In a school 3/7 of students are girls. If there are 246 boys, find the number of girls in the school.

Answer 1

hey dear



here is your answer


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Let the number of girl in school be x

given


3 / 7 students are girls


246 boys in school


to find girl = ?


so here we go we assume 3 /7x girl


x - 3 / 7 x = 246


take lcm 7 = 246


x*7 / 1*7 - 3 /7 x = 246


7x / 7 - 3 / 7x = 246


7x - 3x
_____ = 246
7


4x / 7 = 246


here transpose the 7 to multiply 246


4x = 246 * 7


x = 246 * 7 / 4


x = 430.5


hence total number of student in school is 431 round off


to find number of girl


431 - 246


=185


hence number of girls are 185

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hope it helps


thank you