Question

An identity thief watches someone enter a four-digit PIN and manages to see that the first digit is 3. They also know that the second digit is either 4 or 7. If the thief tries guessing the PIN, how many possibilities would there be?
a. 100 b. 162 c. 180 d. 200

Answer 1

Answer

its D:200

Step-by-step explanation:

i took the test and it said it was D:200 duhh. anyways have a good dayy.

Answer 2

The number of different PIN codes with these characteristics is 200, the correct option is d.

How many possibilities would there be?

We know that the PIN has 4 digits, the first digit is a 3.

• The second digit can be any number between 0 and 9, so 10 options here.
• The third digit can be either 4 or 7, so 2 options here.
• The last digit can be any number, so also 10 options.

The total number of combinations is equal to the product between the numbers of options:

C = 10*2*10 = 200

If you want to learn more about combinations:

https://brainly.com/question/11732255

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