Question

There are 42 students in a class . The number of boys come to school by school bus 3/4 and girls is2/3 . The total number of students come in school bis is 30 . Find the number of boys in the class and the number of girls come by school bus

Answer 1

Answer:

= 18 boys , 12 girls

Step-by-step explanation:

let, boys = x

And virls = y

so, X+Y = 42

And 3X/4+2Y/3 = 30

So, 3X/4+3Y/4= 42

And 3x/4+2y/3= 30

hence, y/12 =63/2-30

= y/12= 3/2

= y =18

= x= 42-18=24

so, no of boys in bus= 3x/4 = 18

And no of girls in the bus = 2y/3= 12

Hope , its help you