You need a TV, DVD player, and CD player. The sale flyer from a store downtown shows that the TV that you want to buy is on sale for 10% off of the regular price this week. DVD and CD players are both on sale for 20% off next week. Last week you drove downtown to save $30 on some concert tickets, a 15% savings. The regular prices for TVs, DVD players, and CD players are given in the table below. $$\begin{array} { | l | l | }
\hline \text { TV } & \$ 250 \
\hline \text { DVD Player } & \$ 120 \
\hline \text { CD Player } & \$ 200 \
\hline
\end{array}$$ Suppose instead that the DVD player is on sale for 20% off and the CD player is on sale for 5% off regular price. Should you drive downtown to buy the DVD and the CD player?

Question

You need a TV, DVD player, and CD player. The sale flyer from a store downtown shows that the TV that you want to buy is on sale for 10% off of the regular price this week. DVD and CD players are both on sale for 20% off next week. Last week you drove downtown to save $30 on some concert tickets, a 15% savings. The regular prices for TVs, DVD players, and CD players are given in the table below. $$\begin{array} { | l | l | } 
\hline \text { TV } & \$ 250 \
\hline \text { DVD Player } & \$ 120 \
\hline \text { CD Player } & \$ 200 \
\hline
\end{array}$$ Suppose instead that the DVD player is on sale for 20% off and the CD player is on sale for 5% off regular price. Should you drive downtown to buy the DVD and the CD player?

Quizplus · Accepted Answer

First calculate the savings from buying the TV on sale:

$250 * 0.1 = $25

So you will save $25 on the TV.

Next, calculate the savings from buying the DVD player on sale:

$120 * 0.2 = $24

So you will save $24 on the DVD player.

Finally, calculate the savings from buying the CD player on sale:

$200 * 0.05 = $10

So you will save $10 on the CD player.

The total savings is:

$25 + $24 + $10 = $59

This is less than the $30 you saved by driving downtown to buy concert tickets, so it is not worth it to drive downtown to buy the DVD and CD player.

Therefore, the answer is B, because if you bought the DVD and CD player on sale, you would save $59, which is less than the $30 you already saved by driving downtown for concert tickets.

You Need a TV, DVD Player, and CD Player Suppose Instead That the DVD Player Is on Sale for Sale