Question

If there are 25% girls in the class and there are 45 boys in the class, then find the number of students in the class.



please sand me answer in full formula only...​

Answer 1

Step-by-step explanation:

Let the number of students in the class, be = p

Girls = 25 percent of p

Boys  = 45

Percentage of boys = 100 - 25 percent

                                  = 75 percent

75 / 100 x p = 45

p = 45 x 100 / 75 ( Multiply by reciprocal )

   = 4500 / 75

   = 60 students.

Now, let us find the number of girls

= 25 / 100 x 60

= 1500 / 100

= 15 girls

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