SOLUTION: if 30% of 40% of a positive number is equal to 20% of w percent of the same number , what is the value of w ? A 80 B 60 C 50 D 15 E 10

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: if 30% of 40% of a positive number is equal to 20% of w percent of the same number , what is the value of w ? A 80 B 60 C 50 D 15 E 10      Log On


   

Question 310334: if 30% of 40% of a positive number is equal to 20% of w percent of the same number , what is the value of w ?
A 80 B 60 C 50 D 15 E 10
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
30% of 40% is .3%2A.4+=+.12, or 12%
w percent expressed as a decimal is w%2F100
The problem says .2%2A%28w%2F100%29+=+.12
w%2F100+=+.6
w+=+60
The answer is B