Question

A bug was running along a number line… f Then, the bug ran from −100 to 100. What distance did it cover? If the average speed of the bug during this run was 20 units per minute, how long did this run take?

Answer 1

$Initial \: point \: of \: bug (a) = -100$

$Ending \: point (b) = 100$

$\pink { Distance \:covered \: by\:bug } = b - a \\= 100 - ( - 100 ) \\= 200 \: units$

$It \:is \: given \: that , \\Time \:to \: cover \: 20 \:units = 1 \: minutes \\Time \: to \: cover \: 200 \:units \\ = \frac{200}{20} \\= 10 \: minutes$

Therefore.,

$\red { Time \: taken \: to \: run \: 200\:units }$

$\green { = 10 \:minutes }$

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