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

1 banana cookie: $1.60
1 coffee cookie: $1.70
1 durian cookie: $1.80

If she collected $238 from selling all the cookies, how many coffee cookies were there?
3 m

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

1 banana cookie: $1.60
1 coffee cookie: $1.70
1 durian cookie: $1.80

If she collected $238 from selling all the cookies, how many coffee cookies were there?