The number of boys and girls in a class are in the ratio 4:3. If four boys leave the class and six pieds join the class then the ratio is 13:12 find the number ...
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Step-by-step explanation:
Number of girls in the class =18
Ratio of boys and girls =4:3
Girls
Boys
=
5
4
18
Boys
=
5
4
Boys =
3
4×18
=24
Therefore, total number of students =24+18=42.
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