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Q.

How many given numbers aren't divisible via way of means of 11 ?


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a

Question Image

b

Question Image

c

Question Image

d

Question Image 

answer is C.

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Detailed Solution


Concept: First, to get a number that is divisible by 11, we need an 11 divisible rule. Then the  rule of divisors of 11 first takes the sum of the alternate digits  from the left and then subtracts them from the sum of the numbers in the even digits from the left to see if the result is divisible by 11. it needs to be checked. or not. Then check  all the numbers under the above conditions. 11, 22, 33, etc. are divisible by 11, so we only know multiples of 0 and 11. Then use to get a number divisible by 11.
The numbers listed are Question ImageThe 11 divisibility tests are:
Take the sum of the alternating numbers from the left, then subtract it from the sum of the numbers in even places from the left. Then check if the result is divisible by 11.
In this split possibility test:
 Question Image In the divisibility test, like Question Imageonly 0 is divisible by 11.
Hence, option 3 is correct.
 
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