30 pens and 75 pencils were purchased for 690. If the average price of a pencil was 2.00, find the average price of a pen.
Choose the correct choice from the following choices
A) 10	B) 11	C) 18	D) 13	E) 14
Since average price of a pencil = 2   ∴ Price of 75 pencils = 150   ∴ Price of 30 pens = (690 – 150) = 540   ∴ Average price of a pen = 540⁄60 = 18   Answer 18
<result>C</result>
30 pens and 75 pencils were purchased for 690. If the average price of a pencil was 2.00, find the average price of a pen.