Question
Eva baked cream, coffee and pandan tarts. There were one-fifth as many pandan tarts as coffee tarts and an equal number of pandan tarts as cream tarts. The cost of each tart is given as shown.

1 pandan tart: $1.50
1 coffee tart: $1.10
1 cream tart: $1.90

If she collected $178 from selling all the tarts, how many coffee tarts were there?
3 m

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Eva baked cream, coffee and pandan tarts. There were one-fifth as many pandan tarts as coffee tarts and an equal number of pandan tarts as cream tarts. The cost of each tart is given as shown.

1 pandan tart: $1.50
1 coffee tart: $1.10
1 cream tart: $1.90

If she collected $178 from selling all the tarts, how many coffee tarts were there?