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 Post subject: Ratio questionPosted: Thu Oct 12, 2006 5:12 pm
can anyone explain the following:
A map of belguim is drawn to a scale of 1:175000. How many centimetres on the map would show 35km?
the answer is 20 cm. Can anyone cast any light on this?

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 Post subject: Posted: Thu Oct 12, 2006 5:21 pm
Dear Guest,

Scale of 1:175,000 means one cm on map equals 175,000cm in real life.

So 1 cm = 175,000 cm
So 1 cm = 1,750 m
So 1 cm = 1.75 km

So 35 km = 35 / 1.75 cm = 20 cm

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 Post subject: Posted: Thu Oct 12, 2006 5:33 pm
Thanks for such a swift answer.

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 Post subject: Posted: Thu Oct 12, 2006 6:01 pm
You're welcome!

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 Post subject: Posted: Thu Oct 12, 2006 11:04 pm
Thankyou Math man,

I was also stuck on that question.

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