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 $3 ?$

3

minutes

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4

minutes

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7

minutes

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None of the above

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Solution

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
$∴$ Time taken to travel $7$ units $= 1 \times 7 = 7$ minutes

$∴$ (c.) is the correct option.

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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?

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 $3 ?$