The difference between a 7 digit number and the number formed by reversing its digit is not a multiple of  Choose the correct choice from the following options.
A) 121	B) 11	C) 9	D) 10	E) 3
Another approach is to TEST a number.   Let's say the original number is 1231231   So, the REVERSED number is 1321321   The DIFFERENCE = 1321321-1231231= 
<gadget id="calculator">1321321-1231231</gadget>
<output>90_090</output>
90090   No check the answer choices   90090 is a multiple of 3,9,10,11   121 is NOT a multiple of 90090   121nswer:121
<result>A</result>
The difference between a 7 digit number and the number formed by reversing its digit is not a multiple of