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a group consisted of 2 girls for every boy. 24 girls joined the group. there are now 5 girls for every boy. how many boys are in the group

Answer :

tausha2000
The new ratio is 5:1.
5 girls to every 1 boy is, 8 boys and 40 girls.
So there is now 8 boys in the group
Situation 1:



Situation 2:



Replacing g in the second equation:



In the Situation 1 there was 16 girls and 8 boys = 24 persons
In the Situation 2 there are 40 girs + 8 boys = 48 persons

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