Answer Happy

Posted: **Thu May 12, 2022 12:06 pm**

: 7 7 Pts Let A Be The Set Of All 7 Digit Natural Numbers Which Are Divisible By 5 Or Contain No Zeroes In Their Decim 1 (19.84 KiB) Viewed 20 times

7. (7 pts.) Let A be the set of all 7-digit natural numbers which are divisible by 5 or contain no zeroes in their decimal representation. What is the cardinality of A? (Note that a 7 digit number cannot start with 0).