Question
Betty baked blueberry, apple and durian cookies. There were half as many durian cookies as apple cookies and an equal number of durian cookies as blueberry cookies. The cost of each cookie is given as shown.

1 durian cookie: $1.50
1 apple cookie: $1.80
1 blueberry cookie: $1.90

If she collected $175 from selling all the cookies, how many apple cookies were there?
3 m

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Betty baked blueberry, apple and durian cookies. There were half as many durian cookies as apple cookies and an equal number of durian cookies as blueberry cookies. The cost of each cookie is given as shown.

1 durian cookie: $1.50
1 apple cookie: $1.80
1 blueberry cookie: $1.90

If she collected $175 from selling all the cookies, how many apple cookies were there?