Question
During her shopping trip, Tina bought three different types of pens, R, S and T in the ratio of 4 : 2 : 8. She decided to sell them at the prices listed as shown.

Pen R : $2.50
Pen S : $0.90
Pen T : $0.50

Given that Tina bought a total 518 pens, how much did Tina collect from the sale of all the pens?
3 m

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During her shopping trip, Tina bought three different types of pens, R, S and T in the ratio of 4 : 2 : 8. She decided to sell them at the prices listed as shown.

Pen R : $2.50
Pen S : $0.90
Pen T : $0.50

Given that Tina bought a total 518 pens, how much did Tina collect from the sale of all the pens?