Question

An ant covers $1$ unit distance on the number line in $1$ minute. How much time the ant will take to cover from $-4$ to $3?$

• A. $3$ minutes
• B. $4$ minutes
• C. $7$ minutes
• D. None of the above

Answer 1

The correct option is C $7$ minutes

A standard number line looks like:


On the number line, to travel from $-4$ to $3$, the ant needs to cover $7$ units as depicted below.


As we know, for the ant,
Time taken to travel $1$ unit $=1$ minute
$\therefore$ Time taken to travel $7$ units $=1\times 7=7$ minutes

$\therefore$ (c.) is the correct option.