Question

If as many $7$ inch piece of wire as possible are cut from a wire that is $3$ feet long, what is the total length of the wire that is left over? $(12$ inches $=1$ foot$)$

• A. $1$ inch
• B. $2$ inches
• C. $3$ inches
• D. $4$ inches
• E. $5$ inches

Answer 1

The correct option is A $1$ inch

$1feet=12inches$

$3feet=36inches$

$=7\times 5inches+1inches$

Five $7inch$ piece wire$=35inches$

So $1inch$ of wire is left.