Question

In a school, 5/8of the students are boys. If
there are 240 girls , find the number of boy
in the school.​

Answer 1

Answer:

400

Step-by-step explanation:

let the total no of students be x

5/8*x=no of boys

no of girls=240

5/8*x+240=x

3/8*x=240

x=640

no of boys=5/8*640

=400

Answer 2

Answer:

400 boys

Step-by-step explanation:

Let total number of students = x

Total number of girls = 240

And, total number of boys = (5/8)×(x)

Then, we can form an equation

x = 240 + 5x/8

x - 5x/8 = 240

(8x-5x)/8=240

3x/8 = 240

x=240×8/3

x=640 students total

So, number of boys=5/8 × 640

                                 =400 boys