Question

Rita goes 20 km towards east from a point A to the point B. From B,
she moves 30 km towards west along the same road. If the distance
towards east is represented by a positive integer then, how will you
represent the distance travelled towards west? By which integer will
you represent her final position from A?
​

Answer 1

$\huge\fbox\pink{A}\huge\fbox\green{n}\huge\fbox\blue{S}\huge\fbox\red{w}\huge\fbox\purple{E}\huge\fbox\orange{r}$

A positive integer represent the distance towards east.

Then, distance travelled towards west will be represented by a negative integer.

➮ So, According to the question

Ritu travel a distance in east direction = 20 km

Ritu travel a distance in west direction = -30 km

$= 20 + ( - 30)$

$= 20 - 30$

$= - 10 \: \text{km}$

$\color{purple}\boxed{ \rm{ Therefore, \: the \: final \: position \: is - 10km.</p><p> }}$