Question

6. 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?
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Answer 1

Step-by-step explanation:

A is the initial point,

It can be taken as 0

Rita moves towards east 20 km

It can be taken as +20

Rita moves towards west 30 km

It can be taken as -30

Distance between initial point and final point = 10 km towards west

It can be taken as -10

The final position of Rita is represented as -10

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Answer 2

Answer:

Step-by-step explanation:

From the question, it is given that

A positive integer represents the distance towards the east.

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

Rita travels a distance in east direction = 20 km

Rita travels a distance in west direction = – 30 km

∴Distance travelled from A = 20 + (- 30)

= 20 – 30

= -10 km

Hence, we will represent the distance travelled by Rita from point A by a negative integer, i.e. – 10 km