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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?
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Solution
Since the distance towards east is represented by a positive integer, the distance travelled towards west will be represented by a negative integer.
Distance travelled in east direction = 20 km
Distance travelled in west direction = −30 km
Distance travelled from A = 20 + (−30) = −10 km
Therefore, we will represent the distance travelled by Rita from point A by a negative integer, i.e., −10 km (i.e., Rita is now in west direction).
RELATED QUESTIONS
Subtract the numbers in the top row from the numbers in the first column and write the proper number in each empty box.
| – | 6 | 9 | –4 | –5 | 0 | +7 | –8 | –3 |
| 3 | 3 – 6 = –3 | |||||||
| 8 | 8 − (−5) = 13 | |||||||
| –3 | ||||||||
| –2 |
Find the value of: |7−4|
Add: -493 and 289
Find the additive inverse of: -57
Simplify: [−13 − (−17)] + [−22 − (−40)]
Multiply: (–746) by (–8)
Fill in the blanks:
1 ÷ (......) = −1
Simplify: 16 ÷ (−1)
Write 'T' for true and 'F' for false for the following:
0 is an integer.
The sum of all the integers between –5 and –1 is –6.
