Question

An electrician bought 120 feet of electrical wire and used 105 feet of it what percent of wire went unused

A. 15%
B. 12.5%
C. 8.75%
D. 7%

Answer 1

Explanation:

105/120= 0.875

In order to obtain a percentage, you move the decimal point to the right two spaces.

Therefore, 0.0875 will be 87.5%

What this tells you is that 87.5% of the wire was used.

So, 100%-87.5%= 12.5% of wire was left over/unused.

Answer 2

the answer is B 12.5%