Question

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

Answer 1

option (D).54 is the answer of your question

HOPE IT HELPS YOU

Answer 2

Given: One-third of one-fourth of a number is 15

To find: Three-tenth of that number

Let: The number be $x$

Solution: According to the given question and assumption made:

$(\frac{1}{3} )$ × $(\frac{1}{4} x)$ $= 15$

⇒ $\frac{x}{12}= 15$

⇒ $x = 15$ × $12$ = $180$

Now, Three-tenth of this number will be:

$(\frac{3}{10} )$ × $x$ ⇒ $(\frac{3}{10} )$ × $180$

⇒ $54$

Hence, three-tenth of the number is 54.