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 2 of 7.

ARIKALA SRIHARI said:   6 months ago
@Jesvin

X=180
The question said 1/3 of 1/4 of x is 15.
1/4 of 180 is 45
1/3 of 45 is 15.
(1)

Virendra said:   1 decade ago
Just take (x) multiplication sign in the place of (of) in qs'n .. so then it's easy.

Medha dhumal said:   9 years ago
It is difficult to understand the logic. Is there any easy method to solve this?
(1)

Bijay said:   1 year ago
(1/3*1/4) * x = 15.
X/12 = 15,
X = 15/12,
X = 180,
3/10 = 180,
= 3 * 18,
= 54.
(7)

Saurabh said:   6 years ago
1 / 3 * 1/4 * n = 15.
1/12 *n = 15,
n= 12 *15 = 180,
3/10 * 180 = 54.
(17)

Mahesh said:   8 years ago
Here, 1/3 * 1/5 * Y = 15 * 3/10.
Y = 54.

Pavansai said:   8 months ago
1/3 multiple by x/4 = 15.
X = 180.

3/10. Multiply by 180
gives 54.

Vinay said:   1 decade ago
1/3*1/4*x=15
x=15*3/1*4/1
x=180
Therefore required is
=3/10*180
=54
(1)

Ravneet said:   9 years ago
Not understandable. Let me know the shortcut to find the solution.

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


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