Chapter 6.2, Problem 32E

To determine

To calculate : the money which would be saved if 30CD jewels cases at the store with lower unit price.

Answer to Problem 32E

The money which would be saved if 30CD jewels cases at the store with lower unit price.

is $\$3$

Explanation of Solution

Given information : When stores A sells $10CD$ jewels cases for $\$9$ Stores B sells $15CD$ jewels cases for $\$12$

Calculation :

Store A: Sells $10CD$ jewel cases for $\$9$

So, cost of jewel case $=\frac{\$9}{10}=\$0.9$

Store B: Sells $15CD$ jewel cases for $\$12$

So, cost of jewel case= $\frac{\$12}{15}=\frac{4}{5}=\$0.8$

So, it is clearly seen that store B sells jewel at low price

Now, cost of jewel cases in store A will be $=$$30CD$ jewel case $\times$ cost of $1CD$ jewel case

Cost of jewel cases in store A will be $=30\times \$0.9=\$27$

Cost of jewel cases in store B will be $=$$30CD$ jewel case $\times$ cost of $1CD$ jewel case

Cost of jewel cases in store B will be $=30\times \$0.8=\$24$

So, the amount of money I will save if I buy from store B $=\$27-\$24$

So, the money which would be saved is $\$3$