Craftsman sells 10-digit keypads that are installed on homes to open the garage door. The consumer chooses a 5-number code when programming the keypad. The total number of codes that the consumer can choose from is ______.
A)100,000
B)57,128
C)30,240
D)252

Question

Quizplus · Accepted Answer

The consumer can choose each of the 5 digits from 0 to 9, which gives 10 choices per digit. Therefore, the total number of codes is 10^5 = 100,000.

Craftsman Sells 10-Digit Keypads That Are Installed on Homes to Open