1. During a woekend, the manager of a mall gave away gift cards to every \( 80^{\text {th }} \) person who visited the mall. "Saturday, 1,210 people visited the mall. *Sunday: 1,814 visited the mall. How many people received a gift card?

To find out how many people received a gift card, we need to determine how many \( 80^{\text{th}} \) persons visited the mall on both Saturday and Sunday. **Saturday:** - Total visitors: 1,210 - Gift cards given to every \( 80^{\text{th}} \) person. To find the number of gift cards given on Saturday, we divide the total number of visitors by 80: \[ \text{Number of gift cards on Saturday} = \left\lfloor \frac{1210}{80} \right\rfloor \] Calculating this: \[ \frac{1210}{80} = 15.125 \] Taking the floor value, we get: \[ \left\lfloor 15.125 \right\rfloor = 15 \] So, 15 gift cards were given on Saturday. **Sunday:** - Total visitors: 1,814 - Gift cards given to every \( 80^{\text{th}} \) person. To find the number of gift cards given on Sunday, we divide the total number of visitors by 80: \[ \text{Number of gift cards on Sunday} = \left\lfloor \frac{1814}{80} \right\rfloor \] Calculating this: \[ \frac{1814}{80} = 22.675 \] Taking the floor value, we get: \[ \left\lfloor 22.675 \right\rfloor = 22 \] So, 22 gift cards were given on Sunday. **Total gift cards given over the weekend:** \[ \text{Total gift cards} = \text{Gift cards on Saturday} + \text{Gift cards on Sunday} = 15 + 22 = 37 \] Thus, the total number of people who received a gift card over the weekend is \( \boxed{37} \).