Aptitude - Numbers - Discussion
Discussion Forum : Numbers - General Questions (Q.No. 51)
51.
476 ** 0 is divisible by both 3 and 11. The non-zero digits in the hundred's and ten's places are respectively:
Answer: Option
Explanation:
Let the given number be 476 xy 0.
Then (4 + 7 + 6 + x + y + 0) = (17 + x + y) must be divisible by 3.
And, (0 + x + 7) - (y + 6 + 4) = (x - y -3) must be either 0 or 11.
x - y - 3 = 0 
y = x - 3
(17 + x + y) = (17 + x + x - 3) = (2x + 14)
x= 2 or x = 8.
x = 8 and y = 5.
Discussion:
37 comments Page 3 of 4.
Padman said:
9 years ago
5 and 2 are not there in the answers given. Hence 8 and 5 selected.
Mayank said:
9 years ago
I can't understand please explain me from first step to last step.
Neelu said:
1 decade ago
Please can any one can explain this problem in easy method.
Keerthi said:
5 years ago
How x=2 and x=8 came? please explain it.
(3)
Durga Prasad said:
1 decade ago
Hi Tanya, Thanks for given explanation.
Shekhar said:
7 years ago
How can come x=2 or 8?
Please explain.
Please explain.
Prateek said:
9 years ago
Thank you so much @Tanya Mazumdar.
Parampreet Singh said:
1 decade ago
What about x=5 and y=2 as answer?
Priyanka said:
10 years ago
Why not there answer as 7, 4?
Kala said:
1 decade ago
Please explain last two step.
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