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 Post subject: age question
PostPosted: Sat Jun 06, 2020 1:40 pm 
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Joined: Mon Nov 26, 2018 1:06 pm
Posts: 6
Alexander’s grandma is 5 times as old as Alexander was 3 years ago.
If Alexander’s grandma is 60, how old is Alexander?

What is the best way to answer this question for a 10 year old?


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 Post subject: Re: age question
PostPosted: Sat Jun 06, 2020 2:09 pm 
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Joined: Wed Jan 18, 2012 11:41 am
Posts: 10177
Location: Essex
Erijkhan wrote:
Alexander’s grandma is 5 times as old as Alexander was 3 years ago.
If Alexander’s grandma is 60, how old is Alexander?

What is the best way to answer this question for a 10 year old?


- How old would Alexander be now, if Grandma was currently five times as old?
- now add 3 years to that age?

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 Post subject: Re: age question
PostPosted: Sat Jun 06, 2020 3:34 pm 
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Joined: Wed Mar 04, 2009 2:01 pm
Posts: 9975
Location: Herts
This is a VR question.

This type of question is known as Type Z.

They are my favourite question as if you just follow the logic they are straightforward.

Mods can you move it to the VR section pls?

Always start with what you know.

Grandma is 60 years old.

60 is 5 times older. 60 divided by 5 = 12

12 3 years ago so 15 now.

DG


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