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 Post subject: Q45. NL Consortium Grp2 2016 paperPosted: Sat Aug 12, 2017 11:33 am

Joined: Thu Mar 13, 2014 6:01 pm
Posts: 19
Hi All,

A bird has 2 legs, a cat has 4 legs, an insect has 6 legs and a spider has 8 legs.
Claire looks at some animals and counts all their legs.
She counts 38 legs.
There are twice as many birds as spiders and twice as many cats as insects.
How many of each type of animal can she see?

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 Post subject: Re: Q45. NL Consortium Grp2 2016 paperPosted: Sat Aug 12, 2017 12:08 pm

Joined: Mon Feb 12, 2007 1:21 pm
Posts: 14983
Mumzzpet wrote:
A bird has 2 legs, a cat has 4 legs, an insect has 6 legs and a spider has 8 legs.
Claire looks at some animals and counts all their legs.
She counts 38 legs.
There are twice as many birds as spiders and twice as many cats as insects.
How many of each type of animal can she see?

OK I'd use trial and improvement.

twice as many birds as spiders - try 2 birds, 1 spider = 4 + 8 = 12

twice as many cats as insects - try 2 cats, 1 insect = 8 + 6 = 14

Now we need 38 legs so how can we combine '12' and '14' to get 38? Try that and if you can't sort it then post again.

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 Post subject: Re: Q45. NL Consortium Grp2 2016 paperPosted: Sat Aug 12, 2017 3:46 pm

Joined: Thu Mar 13, 2014 6:01 pm
Posts: 19
Oh great ! Thanks Guest55!

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