A car travelled 60 km towards the east direction from a point A. From there, it travelled 100 km in the west direction. How far is the car from point A now?
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Solution
Let's assume the car travelling toward east as positive and west as negative.
60 + (-100) = - 40. (0.5 marks)
So, the car is 40 km west from point A. (0.5 marks)