IPS Maths Book D Paper 3, question 27

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za1
Posts: 167
Joined: Wed Jul 23, 2008 1:07 pm

IPS Maths Book D Paper 3, question 27

Post by za1 »

Hi,

Can anyone please help?

The question is :
Mrs Davison buys a map of Ireland. It is drawn to the scale of 1 : 500, 000.

What distance , in kilometres is represented by 1cm on the map.

A = 5km. B = 500km, C = 50km, D = 5000 km, E = 500,000 m.

The book says the answer is B.

But :

Scales mean that 1 unit is represented by 500,000 units in this example. Hence 1 cm on the map is 500,000cm on the land. So 100 cm=1m, 1000 m = 1km meaning 100, 000 cm = 1 Km. So surely the answer is A : 5Km.

Any comments? Thanks in Advance?
dadofkent
Posts: 515
Joined: Tue Jan 01, 2008 2:05 pm

Re: IPS Maths Book D Paper 3, question 27

Post by dadofkent »

za1 wrote:Hi,

Can anyone please help?

The question is :
Mrs Davison buys a map of Ireland. It is drawn to the scale of 1 : 500, 000.

What distance , in kilometres is represented by 1cm on the map.

A = 5km. B = 500km, C = 50km, D = 5000 km, E = 500,000 m.

The book says the answer is B.

But :

Scales mean that 1 unit is represented by 500,000 units in this example. Hence 1 cm on the map is 500,000cm on the land. So 100 cm=1m, 1000 m = 1km meaning 100, 000 cm = 1 Km. So surely the answer is A : 5Km.

Any comments? Thanks in Advance?
You seem to be right. Indeed, if the correct answer was B, then e is correct also.
mh1
Posts: 100
Joined: Thu Feb 21, 2008 10:48 pm

Post by mh1 »

I agree the correct answer is A. The answer in the workbook- i.e B is incorrect
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