Question

Number of 5 digit numbers which are divisible by 5 and each number containing the digit 5

Answer 1

Answer:

18000

Step-by-step explanation:

we have possible digits 0,1,2,3,4,5,6,7,8,9

Since, for the 5 digit number, the digit at ten thousand place, we cannot fill 0, otherwise it will become 4 digit.

also at ones place digit, we can only fill 0 and 5, as the number divisible by 5.

and for the rest of the places we have 10 possibilities (from 0 to 10)

Total possibilities: 9 × 10 × 10 × 10 × 2

= 18000

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