Aptitude - Numbers - Discussion

Discussion Forum : Numbers - General Questions (Q.No. 18)
18.
Which one of the following numbers is exactly divisible by 11?
235641
245642
315624
415624
Answer: Option
Explanation:

(4 + 5 + 2) - (1 + 6 + 3) = 1, not divisible by 11.

(2 + 6 + 4) - (4 + 5 + 2) = 1, not divisible by 11.

(4 + 6 + 1) - (2 + 5 + 3) = 1, not divisible by 11.

(4 + 6 + 1) - (2 + 5 + 4) = 0, So, 415624 is divisible by 11.

Discussion:
46 comments Page 5 of 5.

Arjun said:   1 decade ago
@saurabh.
2+3+5+6+4=20 which is not exactly divisible by 11. It is exactly divisible by 2,5,10,20...

Ramanchuchra said:   1 decade ago
Can anybody tell me if sum of all digit is divisible by the no. is divisible by the whole set of numbers.

Abhi said:   1 decade ago
@Arjun.
You are wrong.

EX- if you take 209/11.

Then your logic is wrong.

Because 2+0+9=11, and 11/11=1.

And I request you don't post wrong information because many peoples are confused with this type of example.

Hope you understand.

Maya said:   1 decade ago
It is the principle for dividing any No. by 11.

If the difference between odd & even places No. comes 0 or 11 or multiple of 11 i.e. 22, 99, 121 etc. Then the whole No. will be divided by 11.

For example we also have principle for dividing any No. by 2. i.e.the unit place No. is divided by 2 that means the whole No. is divided by 2.

Sindhu said:   1 decade ago
2+3+5+6+4+1=21 it is not divisible by 11.

2+4+5+6+4+2=23 it is not divisible by 11.

3+1+5+6+2+4=21 it is not divisible by 11.

4+1+5+6+2+4=22 it is divisible by 11.

Answer:415624.

Sruthi said:   2 decades ago
Can you please tell me how the sets of numbers are chosen?


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