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  • Number of four-digit positive integers if the product of their digits is divisible by 3 is.  Option: 1 1260<div class='q

Number of four-digit positive integers if the product of their digits is divisible by 3 is.

 

Option: 1

1260


Option: 2

1320


Option: 3

625


Option: 4

7704


Answers (1)

best_answer

Product will be divisible by 3 if atleast one digit is 0,3,6,9 Now total four-digit no. = 9 \times 10^3,
Number of four-digit no. without 0,3,6,9=6^4
Total number of four-digit integers =9000-1296=7704

Posted by

rishi.raj

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