Since average price of a pencil = 2
∴ Price of 75 pencils = 150
∴ Price of 30 pens = (570 – 150) = 360
∴ Average price of a pen = 420⁄60 = 14
30 pens and 75 pencils were purchased for 570. If the average price of a pencil was 2.00, find the average price of a pen.
10
11
12
13
14