Gina gave the cashier $30 to pay for 5 pairs of socks. The cashier gave her $6.10 in change. Each pair of socks cost the same amount. What is the cost in dollars and cents for each pair of socks?

$4.78

Step-by-step explanation:

subtract 6.10 from 30 = 24.90

then divide it by 5

ans : $4.78

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.