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 3 of 6.
Phuntsho dorji said:
9 years ago
Why using addition symbol instead of multiplication?
Please anyone explain to me.
Please anyone explain to me.
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.
Praveengolla said:
9 years ago
Thank you @Nikitha and @Pavan.
Balaji psg said:
9 years ago
Thank you @Nikitha I can understand now.
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.
Meghana said:
9 years ago
I am not getting this, please explain properly.
Ramana said:
9 years ago
How it comes 22+ x? Please explain it.
Durga said:
9 years ago
Thanks, @Nikitha.
Kamal said:
9 years ago
Not understand the solution, please someone help me.
Pravas said:
9 years ago
Simple method-->divide the left-hand side number by 3, the remainder will be 1, then divide RHS number by 3 the remainder will be 0 as the number is divided by 3 so, place 2 before remainder 1, it will be 21 and divide by 3. That's solved.
Ex: 517/3 = 1 (remainder) * 324/3 = 0, So place 2 before 1 (remainder) = 21/3 = 7 (all are divided).
Ex: 517/3 = 1 (remainder) * 324/3 = 0, So place 2 before 1 (remainder) = 21/3 = 7 (all are divided).
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