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:
47 comments Page 2 of 5.
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.
Santosh said:
8 years ago
Nice solution, Thanks @Sindhu.
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.
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.
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.
RAJA BABU said:
1 decade ago
11)415624(37784
33
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85
77
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86
77
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92
88
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44
44
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33
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85
77
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86
77
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92
88
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44
44
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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?
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