Aptitude - Numbers - Discussion

Discussion Forum : Numbers - General Questions (Q.No. 51)

Numbers

51.

476 ** 0 is divisible by both 3 and 11. The non-zero digits in the hundred's and ten's places are respectively:

7 and 4

7 and 5

8 and 5

None of these

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 4 of 4.

Pritam Bose said: 8 years ago

Thank you @Tanya Mazumdar.

Rinkal said: 8 years ago

Thanks @Tanya Mazumdar.

Poonam said: 9 years ago

How did y = 5 come?

Shahid ali said: 8 years ago

Thank you @Tanya.

Iris said: 5 years ago

Thank you @Tanya.

(2)

Appu said: 1 decade ago

Thank you tanya.

Jashim uddin said: 7 years ago

Thanks @Tanya.

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