Aptitude - Numbers - Discussion
Discussion Forum : Numbers - General Questions (Q.No. 18)
18.
Which one of the following numbers is exactly divisible by 11?
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 2 of 5.
Pratiksha sharma said:
1 decade ago
415624/11=37784.
It is exactly divisible by 11. This is easiest method.
It is exactly divisible by 11. This is easiest method.
Vimal said:
1 decade ago
@ pratiksha.
Ya you are right. But in aptitude test, they won't allow you to use calculator!!!
Ya you are right. But in aptitude test, they won't allow you to use calculator!!!
Bishnu said:
1 decade ago
I am not understand this method please help me.
Ish said:
1 decade ago
Can any one explain it more clearly?
Santhu said:
1 decade ago
By sum of all digits can be divisible by 11 also we can calculate.
1. option sum is 21 so it is not divisible with 11
2. option not
3. option not
4. option sum is 22 is divisible by 11
So ans is 4.option
1. option sum is 21 so it is not divisible with 11
2. option not
3. option not
4. option sum is 22 is divisible by 11
So ans is 4.option
Lekha said:
1 decade ago
Ple tell me how the set of numbers are chosen.
Saurabh said:
1 decade ago
What if the number is 23564?
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...
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.
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.
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