Question

If one-third of one-fourth of a number is 15, then three-tenth of that number is:

Answer 1

the number thus obtained is
15 × 4 ×3
= 180 now three tenth of this number
=. 180 × 3/10
= 54. :)

Answer 2

Hello friend,
The answer is 54.

Let the number is x,

13of14∗x=1513of14∗x=15
=>x=15×12=180=>x=15×12=180
=>so 310×x=310×180=54