Question

25% of the students in a school are girls and other are boys.Form an equation and draw a graph for this.Answer the following questions by seeing the graph.
i.Find the number of boys,if the number of girls is 35.
ii.Find the number of girls,if the number of boys is 25.


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Answer 1

Answer:

Let the number of girls be 'x' and number of boys be 'y', then

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + y

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given information

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given informationNumber of girls = 25% of the students.

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given informationNumber of girls = 25% of the students.x = 25% of (x + y)

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given informationNumber of girls = 25% of the students.x = 25% of (x + y)=

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given informationNumber of girls = 25% of the students.x = 25% of (x + y)= 100

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given informationNumber of girls = 25% of the students.x = 25% of (x + y)= 10025

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given informationNumber of girls = 25% of the students.x = 25% of (x + y)= 10025

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given informationNumber of girls = 25% of the students.x = 25% of (x + y)= 10025 of (x+y)=

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given informationNumber of girls = 25% of the students.x = 25% of (x + y)= 10025 of (x+y)= 4

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given informationNumber of girls = 25% of the students.x = 25% of (x + y)= 10025 of (x+y)= 41

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given informationNumber of girls = 25% of the students.x = 25% of (x + y)= 10025 of (x+y)= 41

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given informationNumber of girls = 25% of the students.x = 25% of (x + y)= 10025 of (x+y)= 41 (x+y)

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given informationNumber of girls = 25% of the students.x = 25% of (x + y)= 10025 of (x+y)= 41 (x+y)x=

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given informationNumber of girls = 25% of the students.x = 25% of (x + y)= 10025 of (x+y)= 41 (x+y)x= 4

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given informationNumber of girls = 25% of the students.x = 25% of (x + y)= 10025 of (x+y)= 41 (x+y)x= 41

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given informationNumber of girls = 25% of the students.x = 25% of (x + y)= 10025 of (x+y)= 41 (x+y)x= 41

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given informationNumber of girls = 25% of the students.x = 25% of (x + y)= 10025 of (x+y)= 41 (x+y)x= 41 (x+y)

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given informationNumber of girls = 25% of the students.x = 25% of (x + y)= 10025 of (x+y)= 41 (x+y)x= 41 (x+y)4x=x+y

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given informationNumber of girls = 25% of the students.x = 25% of (x + y)= 10025 of (x+y)= 41 (x+y)x= 41 (x+y)4x=x+y3x=y

Let the number of girls be 'x' and number of boys be 'y', thenTotal number of students = x + yAccording to the given informationNumber of girls = 25% of the students.x = 25% of (x + y)= 10025 of (x+y)= 41 (x+y)x= 41 (x+y)4x=x+y3x=yThe required equation is 3x = y or 3x - y = 0.

Answer 2

Let the number of girls be ' x ' and number of boys be ' y ' , then the total numbers of students = x + y . According to the given information number of girls = 25 % of the students . C = 25 % of ( x + y ) = 10025 of ( x + y ) = 41 ( x + y ) x = 41 ( x + y ) 4x = x + y 3x = y . The required equation is 3x = y or 3x - y = 0.....