If one-third of one-fourth of a number is 25, then three-tenths of that number is:

Question: If one-third of one-fourth of a number is 25, then three-tenths of that number is:

Solution:
Let the number be 'p'

Now,
(1/3) × (1/4) × p = 25
⇒ p/12 = 25
⇒ p = 12 × 25
∴ p = 300

∴ Three-tenths of that number will be = (3/10) × p
= (3/10) × 300
= 3 × 30
= 90