The ratio of boys to girls i s4:5 number of boys is 20 then number of girls is
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25 is the number of girls
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let the no.of girls be x
4:5::20:x
4×x=5×20
x=100÷4
=25
no. of girls =25
4:5::20:x
4×x=5×20
x=100÷4
=25
no. of girls =25
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