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

by

(A) 44
(B) 54
(C) 64
(D) 74

🧠 Explanation (Math):

Given: (1/3) of (1/4) of a number = 15; find (3/10) of the number
Step 1: N/12 = 15 ⇒ N = 180
Step 2: (3/10)N = 3/10 × 180 = 54
Final Answer: 54