A) 4
B) 1
C) 7
D) 9
Correct Answer: A
Solution :
If 148101a095 is divisible by 11, then \[(1+8+0+a+9)-(4+1+1+0+5)\] is either 0 or a multiple of 11 \[\Rightarrow (a+18)-11\] is either 0 or a multiple of 11 \[\Rightarrow a+7=0\] or a multiple of 11 \[\therefore a+7=11\Rightarrow a=4\]You need to login to perform this action.
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