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 Post subject: CGP Maths PaperPosted: Tue Apr 07, 2009 4:54 pm

Joined: Tue Oct 28, 2008 6:41 pm
Posts: 133
Location: Surrey
Hi all, finally managed to get DD off the computer (Mum...I was following T.i.p.s.y's advice!)

DD is stuck on a question on the CGP Maths Paper 1 Test A (No Calculator).
Question 15 a)

The table below shows the car parking charges in the town where Yuan and Rachel live.
This is the table:

Time Cost
up to 2 hours 70p
up to 3 hours Â£1.30
up to 4 hours Â£1.80
up to 5 hours Â£2.20
over 5 hours Â£5.70

Yuan's dad parked his car at 10.20am. He left the car park at 2.10pm.
How much will he have to pay?

Clearly, the time his dad left the car was 3 hours 50 minutes.
DD answered Â£1.80 but correct answer was Â£1.30.

I am completely stumped by this and don't know how to explain or the actual theory behind it.

Please help??
LQ

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 Post subject: Posted: Tue Apr 07, 2009 5:31 pm

Joined: Mon Feb 12, 2007 1:21 pm
Posts: 11952
It could be a misprint ...

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 Post subject: Posted: Tue Apr 07, 2009 5:39 pm

Joined: Tue Oct 28, 2008 6:41 pm
Posts: 133
Location: Surrey
Er...
DD said that her teacher even explained it to her and the rest of the class but she said it all sounded like gobbledegook. On her paper, it is written:
3 hours 50 mins is still in the Â£1.30 bracket!

???

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 Post subject: Posted: Tue Apr 07, 2009 5:55 pm

Joined: Mon Feb 12, 2007 1:21 pm
Posts: 11952
You are correct - the '3' in the answer is probably a misprint or one of the times given is wrong.

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 Post subject: Posted: Tue Apr 07, 2009 6:16 pm
LuluQueen wrote:
Er...
DD said that her teacher even explained it to her and the rest of the class but she said it all sounded like gobbledegook. On her paper, it is written:
3 hours 50 mins is still in the Â£1.30 bracket!

???

It could well be Â£1.30 for the teacher. But the answer to the question in my area is Â£61.30.

Here's the working:
Total time parked: 3 hrs 50mins

Money Paid: Â£1.30
Penalty Charge: 60.00

Total Cost: Â£61.30

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 Post subject: Posted: Tue Apr 07, 2009 9:16 pm

Joined: Fri Sep 15, 2006 8:51 am
Posts: 8113
Flamenco wrote:
LuluQueen wrote:
Er...
DD said that her teacher even explained it to her and the rest of the class but she said it all sounded like gobbledegook. On her paper, it is written:
3 hours 50 mins is still in the Â£1.30 bracket!

???

It could well be Â£1.30 for the teacher. But the answer to the question in my area is Â£61.30.

Here's the working:
Total time parked: 3 hrs 50mins

Money Paid: Â£1.30
Penalty Charge: 60.00

Total Cost: Â£61.30

Love it!! perhaps that is really the answer!!!!

Reckon it must be a misprint otherwise the first hour would be always be free....??? so where is this car park then - why aren;t we having a get together in it?

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 Post subject: Posted: Tue Apr 07, 2009 9:27 pm
Quote:
Hi all, finally managed to get DD off the computer (Mum...I was following T.i.p.s.y's advice!)

I may have impressed someone at last. Of course your DD is VERY clever and has a larger vocab than me! How are her manipulating skills?

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 Post subject: Re: CGP Maths PaperPosted: Wed Apr 08, 2009 8:44 am

Joined: Fri Jul 06, 2007 8:31 pm
Posts: 1192
Is the charging 24hrs a day? or does it start... say at 11:00?

Did you give us the whole question?

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 Post subject: Posted: Wed Apr 08, 2009 9:26 am

Joined: Tue Oct 28, 2008 6:41 pm
Posts: 133
Location: Surrey
Whoops

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 Post subject: Posted: Wed Apr 08, 2009 9:27 am

Joined: Tue Oct 28, 2008 6:41 pm
Posts: 133
Location: Surrey
T.i.p.s.y wrote:
Quote:
Hi all, finally managed to get DD off the computer (Mum...I was following T.i.p.s.y's advice!)

I may have impressed someone at last. Of course your DD is VERY clever and has a larger vocab than me! How are her manipulating skills?

DD says thanks.
Erm, they are sastisfactory, able to get round rock solid me!

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