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 Post subject: NFER TEST 11A Q48 and Q50Posted: Fri Dec 29, 2006 12:59 pm
I am stuck on the following NFER 11A q48 and 50

Q48

It’s a rectangle with bits cut off along 2 sides (Sorry I can’t draw the shape)

Length=x
Height =y
Shorter length=z

What is the parameter of this shape ?

2x + 2y
x + y + 2z
xy + zy
xy
x + 2y + x

The correct answer given is 2x + 2y

Q50

A milkman and a baker deliver to the same house.

In a period of 28 days, the milkman calls every second a day and the baker every third day.

They meet at the house twice in the first 7 days.

How many more times do they meet during the 4 week period ?

Thanks,

guest

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 Post subject: Posted: Fri Dec 29, 2006 1:39 pm
The first one - if there is a rectangle out of one corner it doesn't change the perimeter only the area.

They will meet every six days because 6 is the smallest number 2 and 3 both go into [the lowest common multiple].

We are told they meet twice in the first week - this must be day 1 and day 7 so next meetings are day 13 [7 + 6], day 19 [13+6] and day 25 [day 19+6].

Hope this helps!

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 Post subject: Posted: Fri Dec 29, 2006 2:20 pm
Hi guest55,

Thank you very much for your prompt response.

guest

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