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Write a digit in the blank space of each of the following numbers so that the numberformed is divisible by 11 :(a)92_389 (b)8_9484

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Write a digit in the blank space of each of the following numbers so that the numberformed is divisible by 11 :(a)92_389                 (b)8_9484
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a)Let x be the digit to be inserted
9+3+2=14
8+x+9=17+x
17+x-14=x+3
If x+3=0
x=-3
If x+3=11
x=8
b)Let x be the digit to be inserted
4+4+x=8+x
8+9+8=25
Difference is
25-(8+x)=17-x
17-x=0
x=17
17-x=11
x=6.
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