If the number 481 * 673 is completely divisible by 9, then the smallest whole number in place of * will be:

A. 2 B. 5
C. 6 D. 7
E. None of these

• A no. is divisible by 9 if the sum of the digits of the No. is divisible by 9
  4+8+1+A+6+7+3=29+A must be divisible by 9
  Thus the smallest No. we can put in place of * is 7(29+7)=36 divisible by 9
  Answer option is D
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