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.
Reena said:
1 decade ago
2+3+5+6+4+1 = 21/11.
2+4+5+6+4+2 = 25/11.
3+1+5+6+2+4 = 21/11.
4+1+5+6+2+4 = 22/11 = 2 it is divisible by 11.
2+4+5+6+4+2 = 25/11.
3+1+5+6+2+4 = 21/11.
4+1+5+6+2+4 = 22/11 = 2 it is divisible by 11.
Suresh Venkat said:
1 decade ago
@Amit.
Method which you tried is entirely different.
It is not suitable for all no's. but for finding the / by 3 is correct. if (even position no sum)-(odd position no sum) = 0 or 11 then it will be divisible by 11.
Method which you tried is entirely different.
It is not suitable for all no's. but for finding the / by 3 is correct. if (even position no sum)-(odd position no sum) = 0 or 11 then it will be divisible by 11.
Sachin said:
1 decade ago
Sum of digits = (4 + 1 + 5 + 6 + 2 + 4) = 22, which must be divisible by 11.
So answer is 415624.
So answer is 415624.
Amit Chutani said:
1 decade ago
2+3+5+6+4+1 = 21/11.
2+4+5+6+4+2 = 25/11.
3+1+5+6+2+4 = 21/11.
4+1+5+6+2+4 = 22/11 = 2 it is divisible.
2+4+5+6+4+2 = 25/11.
3+1+5+6+2+4 = 21/11.
4+1+5+6+2+4 = 22/11 = 2 it is divisible.
Nagasri said:
1 decade ago
Alternative numbers sum and take their difference. if the difference is 0 or divisible by 11.
Then that numbers are divisible by 11. that means,
eg:415624.
4+5+2 = 11.
1+6+4 = 11.
then difference = 11-11 = 0.
divisible by 11.
If we take any number. We got answer.
Then that numbers are divisible by 11. that means,
eg:415624.
4+5+2 = 11.
1+6+4 = 11.
then difference = 11-11 = 0.
divisible by 11.
If we take any number. We got answer.
Bhaskar said:
1 decade ago
If you take 209/11.
Then your logic.
Because 2+10+9=21,
21 is not divisible.
Then your logic.
Because 2+10+9=21,
21 is not divisible.
Masood tahir said:
1 decade ago
@abhi.
I think Arjun is right as;
209/11= 19 which is completely devise-able by 11 by leaving no remainder, with short cut method for aptitude as; 2+0+9=11 which is also completely divided by 11.
I think Arjun is right as;
209/11= 19 which is completely devise-able by 11 by leaving no remainder, with short cut method for aptitude as; 2+0+9=11 which is also completely divided by 11.
RAJA BABU said:
1 decade ago
11)415624(37784
33
__
85
77
__
86
77
__
92
88
__
44
44
__
00
33
__
85
77
__
86
77
__
92
88
__
44
44
__
00
Jessy said:
9 years ago
Take the number and add all the even positions of the number and odd positions of the number then subtract those two.
Sanjeet said:
9 years ago
What we'll do when we get odd no of digits?
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers