Question
Yoko baked durian, apple and banana cookies. There were one-third as many banana cookies as apple cookies and an equal number of banana cookies as durian cookies. The cost of each cookie is given as shown.

1 banana cookie: $1.20
1 apple cookie: $1.90
1 durian cookie: $1.10

If she collected $288 from selling all the cookies, how many apple cookies were there?
3 m

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Yoko baked durian, apple and banana cookies. There were one-third as many banana cookies as apple cookies and an equal number of banana cookies as durian cookies. The cost of each cookie is given as shown.

1 banana cookie: $1.20
1 apple cookie: $1.90
1 durian cookie: $1.10

If she collected $288 from selling all the cookies, how many apple cookies were there?