Question

After selling a dozen copies of the daily newspaper, a newsstand had fewer than 75 copies left. How many copies did the newsstand have at the beginning of the day?

Answer 1

Dozen=12

75+12=87 at the beginning of the day

Answer 2

N has less than 75 copies
sold 12
so add the 12 back 
n had less than 87 copies in the beginning of the day