Aptitude - Problems on Numbers - Discussion

Discussion Forum : Problems on Numbers - General Questions (Q.No. 1)
1.
If one-third of one-fourth of a number is 15, then three-tenth of that number is:
35
36
45
54
Answer: Option
Explanation:

Let the number be x.

Then, 1 of 1 of x = 15      x = 15 x 3 x 4 = 180.
3 4

So, required number = 3 x 180 = 54.
10

Video Explanation: https://youtu.be/z49OUnzTnwY

Discussion:
68 comments Page 3 of 7.

Balaji said:   1 decade ago
Let the number be"x"
Here the ques clearly says that,

One third=1/3.
One fourth=1/4.
One-third of one-fourth of a number is 15.

i.e 1/3*1/4*x=15(in between one third and one fourth "of" is there."of" indicates multiplication(*)).

Now,

1/12*x=15.
x=12*15.
x=180.

Now he is asking three tenth number
3/10*x=3/10*180=54.

Thats it. Those who didn't understand make a comment.

Somiya sharma said:   1 decade ago
It is easy to understand and it was the clear in question.

Premsai said:   1 decade ago
@R.Mohana Jayanti.

One third of one fourth means = 1/3*1/4 = 1/12.
In problem they given that one third of one fourth is equal to 15.

So 15 = 1/12.
= 12*15.
= 180.

Zarrar momin said:   1 decade ago
Go from answer to question !

If we take 54 it is 3/10 then divide 54 by 3 i.e. 54/3 =18*10=180.

JITESH BHOIR said:   1 decade ago
What is this 10 why you have taken?

Anu said:   1 decade ago
They mentioned in the question three tenth of that number so 3/10.

SILAMBARASAN .N said:   1 decade ago
How to 3/10*180?

Manu said:   1 decade ago
Here we are asked to find the 3/10 of the number. The number obtained is 180. So 3/10*180.

Kailah said:   1 decade ago
How to get 12?

Parag vyas said:   1 decade ago
4 and 3 is undergoing the 1 and if we get cross connection with simple mathematics its addition of 4&3 and we get 12. Try to tech and understanding.


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