Answer:
The ratio of boys and girls =3:5
Let
Number of boys=3x
Number of girls =5x
[tex]{:}\longrightarrow[/tex][tex]\sf 5x=130 [/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf x={\dfrac {130}{5}}[/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf x=26 [/tex]
The number of boys=3x
=3×26=78
[tex]\therefore[/tex]Number of boys is 78.