Which one among the following can not be exactly divided by 9?

To determine if a number is divisible by 9, apply the sum of digits rule: a number is divisible by 9 if the sum of its digits is a multiple of 9 (e.g., 9, 18, 27, 36...).

Step-by-Step Analysis of Options:

• Option A (34567): Sum = 3+4+5+6+7 = 25. Since 25 is not a multiple of 9, this number cannot be divided by 9.

• Option B (34567): Sum = 25. Similarly, this number cannot be divided by 9.

• Option C (56435): Sum = 5+6+4+3+5 = 23. Since 23 is not a multiple of 9, this number cannot be divided by 9.

• Option D (23542): Sum = 2+3+5+4+2 = 16. Since 16 is not a multiple of 9, this number cannot be divided by 9.

• Option E (23544): Sum = 2+3+5+4+4 = 18. Since 18 is a multiple of 9 (9 * 2 = 18), this number is exactly divisible by 9.