(Rate Problems – Price and Qty)
A certain electronic component is sold in boxes of 54 for $16.20 and in boxes of 27 for
$13.20. A customer who needed only 54 components for a project had to buy 2 boxes of
27 because boxes of 54 were unavailable. Approximately how much more did the
customer pay for each component due to the unavailability of the larger boxes?
答案：B