Aptitude - Numbers - Discussion

Discussion Forum : Numbers - General Questions (Q.No. 16)
16.
If the number 517*324 is completely divisible by 3, then the smallest whole number in the place of * will be:
1
2
None of these
Answer: Option
Explanation:

Sum of digits = (5 + 1 + 7 + x + 3 + 2 + 4) = (22 + x), which must be divisible by 3.

  x = 2.

Discussion:
52 comments Page 6 of 6.

Suresh said:   2 decades ago
How can we divide (22+x) by 3 ?

Vikas said:   2 decades ago
Why we are adding the given all digits ?


Post your comments here:

Your comments will be displayed after verification.