Help please !

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ritz667
Posts: 98
Joined: Tue Oct 21, 2008 10:36 pm

Help please !

Post by ritz667 »

Can anyone help with the following questions please

3 ducks have a race
Duck a finishes 38 seconds ahead of duck b who finishes 17 seconds behind duck c.
How many seconds is duck a ahead of duck c

taken from habs 2008

answers gratefully recieved !
bromley mum
Posts: 1061
Joined: Tue Oct 20, 2009 5:04 pm

Re: Help please !

Post by bromley mum »

21 seconds.
hermanmunster
Posts: 12817
Joined: Fri Sep 15, 2006 9:51 am
Location: The Seaside

Re: Help please !

Post by hermanmunster »

they finish in the order a - c - b

a finished then 21 seconds later c finishes then 17 seconds later b finishes
saimaj21
Posts: 35
Joined: Thu Sep 30, 2010 9:03 am

Re: Help please !

Post by saimaj21 »

duck a finishes first and b finishes last (since it is behined c)
we know the time between a and b is 38 seconds and we also know that between c and b is 17 seconds
therefore 38-17=21 seconds
yoyo123
Posts: 8099
Joined: Mon Jun 18, 2007 3:32 pm
Location: East Kent

Re: Help please !

Post by yoyo123 »

with this type of question I always draw a diagram
ritz667
Posts: 98
Joined: Tue Oct 21, 2008 10:36 pm

Re: Help please !

Post by ritz667 »

many thanks for all your replies

wishing everyone a happy new year


ritz667
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