A store has a total supply of 250 pairs of shoes the shoes are selling at a rate of 10 Paris every hour the store has already sold 177 Paris of shoes

17 hours and 42 minutes.

Step-by-step explanation:

the store has a total supply of 250 pairs of shoes which sells 10 pairs of shoes every hour and it has already sold 177 pairs of shoes. So to find out the time needed to sell 177 pairs at a constant rate of 10 pairs every hour.

177 pairs = 17,7 hours or 17 hours and 42 minutes (70% off 60 = 42).