Question
Capacity of 2 wine glasses = Capacity of 1 jar
Capacity of 2 jars = Capacity of 1 tank

Capacity of 7 tanks = Capacity of  _____  wine glasses
4 m

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Capacity of 2 wine glasses = Capacity of 1 jar
Capacity of 2 jars = Capacity of 1 tank

Capacity of 7 tanks = Capacity of  _____  wine glasses