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### Discussion :: Problems on Numbers

1.  If one-third of one-fourth of a number is 15, then three-tenth of that number is:
2.  A. 35 B. 36 C. 45 D. 54

Explanation :

Let the number be x.

Then,$$\frac { 1 } { 3 }$$ of $$\frac { 1 } { 4 }$$of x = 15      x = 15 x 3 x 4 = 180.

So, required number =[$$\frac { 3 } { 10 }$$x180]=54

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