The post office is 4 km east of the bank, and the police station is 4 km west of the bank. How far is the post office from the police station?

0 kmCorrect answerYour answer4 kmCorrect answerYour answer8 kmCorrect answerYour answer16 kmCorrect answerYour answer

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CorrectNot quiteAnswer C

Correct answer: C

The post office and the police station are on opposite sides of the bank, on the same east–west line.
Distance $= 4 + 4 = 8$ km.

Worth noting

0 km would mean both are on the same side. When two places are on opposite sides of a point, add the distances.

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