Question
During her shopping trip, Lynn bought three different types of pens, S, T and U in the ratio of 4 : 3 : 9. She decided to sell them at the prices listed as shown.

Pen S : $2.60
Pen T : $10
Pen U : $0.50

Given that Lynn bought a total 400 pens, how much did Lynn collect from the sale of all the pens?
3 m

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During her shopping trip, Lynn bought three different types of pens, S, T and U in the ratio of 4 : 3 : 9. She decided to sell them at the prices listed as shown.

Pen S : $2.60
Pen T : $10
Pen U : $0.50

Given that Lynn bought a total 400 pens, how much did Lynn collect from the sale of all the pens?