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:
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 2 of 6.
Balaji psg said:
9 years ago
Thank you @Nikitha I can understand now.
Praveengolla said:
9 years ago
Thank you @Nikitha and @Pavan.
Aravind said:
9 years ago
456*85 divisible by 3. Find the smallest whole digit number.
A. 10 b. 84 c. 12 d. 21.
Give me the answer of this question.
A. 10 b. 84 c. 12 d. 21.
Give me the answer of this question.
Meghana said:
9 years ago
I am not getting this, please explain properly.
Phuntsho dorji said:
9 years ago
Why using addition symbol instead of multiplication?
Please anyone explain to me.
Please anyone explain to me.
Vishnu said:
8 years ago
Good, thanks @Nikitha.
Fufh said:
8 years ago
But we can add all numbers.
Subha said:
9 years ago
You gave the best explanation @Nikitha.
@All. Please refer Nikitha's answer you will understand the solution.
@All. Please refer Nikitha's answer you will understand the solution.
Dev said:
8 years ago
Let the two numbers be a and b(a>b)
So A. T. Q
a-b=1365-----> [ eq no(1)]
Also;
b)a (6
- 6b
_____
15
______
Therefore;
From above we can say
a-6b=15-----> [eq no(2)]
Solving both equations we get;
b= 270[as per required].
Thanks.
So A. T. Q
a-b=1365-----> [ eq no(1)]
Also;
b)a (6
- 6b
_____
15
______
Therefore;
From above we can say
a-6b=15-----> [eq no(2)]
Solving both equations we get;
b= 270[as per required].
Thanks.
Mridul said:
7 years ago
@All.
The rule which one is applied here is only applicable for 3, not for 4 or 5 etc.
The rule which one is applied here is only applicable for 3, not for 4 or 5 etc.
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