A can be divided by 11 with no remainder. Which of the following expressions could be divided by 11 leaving a remainder of 1? Options
A) A-20.  B) A-12.  C) A-9.  D) A-10.  E) A-13.
We could use the following logic:   since A is a multiple of 11, we could very well say A = 11K (where K is 1,2...n).   The condition here should now be   11K + 1 = <operation> such that it gives us an integer   11k +1 </operation>= A -20 =&gt; A = 11K + 21 Not divisible by 11   11K +1 = A -12 =&gt; A = 11K + 31 Not A-10.ivisible by 11   11K +1 = A -9 =&gt; A = 11K + 10 Not A-10.ivisible by 11   11K +1 = A -10 =&gt; A = 11K + 11A-10.ivisible by 11   11K +1 = A -13 =&gt; A = 11K + 14 Not A-10.ivisible by 11   Answer therefore is A -10 (A-10.)
<result>D</result>
A can be divided by 11 with no remainder. Which of the following expressions could be divided by 11 leaving a remainder of 1?