Aptitude - Numbers - Discussion

Discussion Forum : Numbers - General Questions (Q.No. 24)
24.
If the number 481 * 673 is completely divisible by 9, then the smallest whole number in place of * will be:
2
5
6
7
None of these
Answer: Option
Explanation:

Sum of digits = (4 + 8 + 1 + x + 6 + 7 + 3) = (29 + x), which must be divisible by 9.

   x = 7.

Discussion:
16 comments Page 2 of 2.

Lakshmanan said:   8 years ago
@ALL.

481 * 673=> 4+8+1+6+7+3=29.
=> 29 is add the two digit => 2+9=11.
=> 11-9=2.

Then 2 is the answer.
(5)

Jagannath said:   7 years ago
I think the is answers is B) 5.

Vijaybaranwal said:   6 years ago
Why? tell me.

Sriram said:   5 years ago
In this problem we find the sum of the digits will be (29+x).

So,

Instead of x you put the values of options what ever they given and Add both then find which option is exactly divisible by 9 that is our required answer.
(5)

Pratiksha roy said:   4 years ago
Not understanding it. Please, anyone, help me to get it.
(7)

Gaurav dewangan said:   3 years ago
Is it applicable for each case?

Or it can be Applied only when we have a divisor as 9?

Please explain.
(2)


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