Friday 4 Competition - 23/02/07

Hey everyone,

Even though we were slack last month and missed the 4 (still getting over festive hangovers) London's favourite once-monthly, London-based, one-day, pop-culture-based, 4-round competition is back.

This week we’ve got a fantastic handheld digital camcorder, 1Gig SD memory card and Superman on DVD to give away.

So if you’ve got 5 minutes to kill at home or at work log on to the Friday 4 for your chance to win... it's completely free to enter.

Enter the Friday 4 here

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Morning!

Are we being mathematically correct with Q2?

(a + b x c – d = ?)

in which case multiplication takes preference over plus and minus within a grouping.

Therefore it actually represents:
(a + (b x c) - d)

Which is correct but will produce a different result than the first equation!

David :cool:
(we've all seen those dodgy "quiz" shows on those "dodgy" TV channels!!

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lol - good point David

We'd certainly fall into the "dodgy quiz" category.

OK, for the Mensa candidates (!):

you have to apply each subsequent mathematical function to the preceeding product, eg:

a + b = y

y x c = w

w - d = z

... we're looking for "z"

If you're putting it into a calculator just press the following buttons in order:

a + b x c - d = ?

... and that should give you your answer.

(How confused is everyone now?)

Note to self: NEVER change career as a quizmaster to become a GCSE Maths Teacher.

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;)

Righty-o then - nice explanation!

(You're not dodgy - at least your answers are obtainable and published - have you *seen* some of the Ofcom Of-whatever reports into those "count the numbers"-type "quizzes"!!! We only argue about how close each Tube station is!)

David.

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since when has the BODMAS rule been dodgy? its the correct math procedure for this and to not accept the bodmas answer would be incorrect, especially as not every entrant will visit the forum and find out that the answer required is the 'wrong' answer :-?

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For the Maths question is it
((a+b) x c) - d

or
a + (b x c) - d

cos it make a big different to the answer?

Thanks Julie

Whoops just seen all the other posts above

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Classic Friday 4 - it wouldn't be the Friday 4 without a question with two correct answers now would it ;)

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Um. They do different things on my calculator.

Let a=1,b=2,c=3,d=4

on my calulator your first method gives 4
by typing 1+2=*3=-4=

the second method gives 3
by typing 1+2*3-4=

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Hi all,

Yes I've heard about some of those quizzes... "What number am I thinking of..." etc... and Richard and Judy seem to be in hot water too.

See? Quizmastery is a turbulent world!

Right, so that there's no scratching and pulling hair we'll except BOTH answers.

either to:

**edit**
(a + (b x c)) - d
or
((a + b) x c) - d
**edit**

(Might give the maths questions a miss next time!)

Good luck everyone.

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:) those quizes are terrible, preying on people with no money or sense and allowing them to rack up horrific phone bills without realising it.

Are there any plans to turn the Friday 4 into a phone based quiz QMB? :)

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What does that mean? :cool:

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