Credit Cards have 16 digit numbers, of which the first 15 digits identify the credit card and the sixteenth digit is the check d

Question

3 years ago

11

Credit Cards have 16 digit numbers, of which the first 15 digits identify the credit card and the sixteenth digit is the check d

igit (the last digit is fixed). U-Kan-Trust-Us Credit Card numbers begin with 61, 62, or 63. What is the maximum number of credit cards that UKTU can issue?

Mathematics

1 answer:

puteri [66] · Answer 1 · 2022-08-03T17:18:51+03:00

puteri [66]3 years ago

5 0

The answer is B. 3 (10^13)