If one-third of one-fourth of a number is 15; then three-tenth of that number is
If one-third of one-fourth of a number is 15; then three-tenth of that number is
A: 42
B: 54
C: 66
D: 98
Step 1 Let the number be N. Step 2 One-third of one-fourth = N ÷ 12. Step 3 N ÷ 12 = 15. Step 4 Multiply both sides by 12