the number of boys and girls in a class are in a ratio 7:5. The number of boys is 8 more than the number of girls . What is the total strength of the class? Also, find the the number of girls and boys in the class.
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Answered by
2
boys : girls
7 : 5
difference = 7 - 5 = 2
2 = 8 student
1 = 8/2 = 4
hence
7 : 5 = ( 7 × 4 = 28 )
and ( 5 × 4 = 20 )
total number of students in class
28 + 20 = 48
7 : 5
difference = 7 - 5 = 2
2 = 8 student
1 = 8/2 = 4
hence
7 : 5 = ( 7 × 4 = 28 )
and ( 5 × 4 = 20 )
total number of students in class
28 + 20 = 48
Answered by
2
let the no. of boys be 7x.
and no. of girls be 5x
according to question,
5x+8=7x
8=7x-5x
8=2x
x=4
no. of boys= 7x
=7*4=28
no. of girls=5x
=5*4=20
total no students=no. of boys + no. of girls
28+20=48
and no. of girls be 5x
according to question,
5x+8=7x
8=7x-5x
8=2x
x=4
no. of boys= 7x
=7*4=28
no. of girls=5x
=5*4=20
total no students=no. of boys + no. of girls
28+20=48
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