how many 5 digit numbers(with distinct digits) are divisible by 5?
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Last digit is either 5 or 0
1 digit is any no. Except 5 and 0. So we have 8 no.s In 1st digit.
7 in 2nd digit
6 in 3rd digit
5 in 4th digit
As one digit consumed one number and numbers are not repeated.
Ans = 8×7×6×5×2 = 3360
1 digit is any no. Except 5 and 0. So we have 8 no.s In 1st digit.
7 in 2nd digit
6 in 3rd digit
5 in 4th digit
As one digit consumed one number and numbers are not repeated.
Ans = 8×7×6×5×2 = 3360
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