Question
Hilda baked durian, apple and blueberry biscuits. There were one-fifth as many blueberry biscuits as apple biscuits and an equal number of blueberry biscuits as durian biscuits. The cost of each biscuit is given as shown.

1 blueberry biscuit: $1.60
1 apple biscuit: $1.10
1 durian biscuit: $1.30

If she collected $210 from selling all the biscuits, how many apple biscuits were there?
3 m

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Hilda baked durian, apple and blueberry biscuits. There were one-fifth as many blueberry biscuits as apple biscuits and an equal number of blueberry biscuits as durian biscuits. The cost of each biscuit is given as shown.

1 blueberry biscuit: $1.60
1 apple biscuit: $1.10
1 durian biscuit: $1.30

If she collected $210 from selling all the biscuits, how many apple biscuits were there?