Answer:
$78.
Step-by-step explanation:
Listing price of watch = $60
Given that the watch price was marked up by 30%,
lets find 30% of listing price to find increase in price after mark up
30% of listing price = 30/100 * $60 = $18
Thus,
New selling price = Listing price of watch + marked up price
New selling price = $60 + $18 = $78
Thus, new selling price after mark up is $78.