AddieUnchained
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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

Respuesta :

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.

facundo3141592

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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