An identity thief watches someone enter a 4-digit PIN and manages to see the first two digits. If the thief tr

Question

An identity thief watches someone enter a 4-digit PIN and manages to see the first two digits. If the thief tries guessing the PIN, how many possibilities would there be?
a.
81
b.
90
c.
100
d.
200

GPT-5 mini · Answer

Answer: c. 100

Explanation: With the first two digits known, the remaining two each can be any of 10 digits (0–9), so 10 × 10 = 100 possible PINs.

An identity thief watches someone enter a 4-digit PIN and manages to see the first two digits. If the thief tries guessing the PIN, how many possibilities would there be?
a.
81
b.
90
c.
100
d.
200

All Answers 1

Submit Your Answer

An identity thief watches someone enter a 4-digit PIN and manages to see the first two digits. If the thief tries guessing the PIN, how many possibilities would there be? a. 81 b. 90 c. 100 d. 200

All Answers 1

Submit Your Answer

An identity thief watches someone enter a 4-digit PIN and manages to see the first two digits. If the thief tries guessing the PIN, how many possibilities would there be?
a.
81
b.
90
c.
100
d.
200