Question
A special tea is a mixture of three kinds of tea leaves A, B and C in the ratio 2 : 3 : 4.
1 kg of each kind of tea leaves costs $7, $8 and $4 respectively.
What is the cost of 7 kg of this special tea?
3 m

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A special tea is a mixture of three kinds of tea leaves A, B and C in the ratio 2 : 3 : 4.
1 kg of each kind of tea leaves costs $7, $8 and $4 respectively.
What is the cost of 7 kg of this special tea?