If number A is a 2-digit number and its digits are transposed to form number B, then the difference between the larger of the tw
o numbers and the smaller of the two numbers must be divisible by _____.
A.8
B.7
C.9
D.an even number
2 answers:
If the original number is ab it has a value of
10a+b when it is reversed it will have a value of 10b-a
10b+a-10a-b is the differences which is equal to
9b-9a
So the numbers must be divisible by 9
Answer:
9 is the correct answer
Step-by-step explanation:
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