A store normally sells each of its DVD for $\$ 20$. At a sale, Phyllis buys two DVDs at the regular price and gets a third DVD for half price. This is the same rate of discount as getting

(A) 2 for the price of 1

(B) 3 for the price of 2

(C) 4 for the price of 3

(D) 5 for the price of 4

(E) 6 for the price of 5

## Part B: Each correct answer is worth 6.
Phyllis pays $\$ 20$ for each of two DVDs and $\$ 10$ for the third DVD, so pays $\$ 50$ in total for 3 DVDs.

Since $\$ 50$ is the price of $2 \frac{1}{2}$ DVDs, then she gets 3 DVDs for the price of $2 \frac{1}{2}$, which is the same as getting 6 DVDs for the price of 5 .

ANSwER: (E)