Daughtrey's technique and Practice book 2

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custard
Posts: 45
Joined: Wed Sep 19, 2012 9:27 pm

Daughtrey's technique and Practice book 2

Post by custard »

Does anyone have this book? I've just done page 13 with my son. (Practice type 16). The last question on the page is:

XD is to CW as UG is to ( ).
We make it ZZ but according to the answers in the back of the book it should be FT. How do you get FT? Or is it a mistake in the book?
Reading Mum
Posts: 1841
Joined: Tue Oct 04, 2011 9:44 am
Location: Reading

Re: Daughtrey's technique and Practice book 2

Post by Reading Mum »

I remember this one being horrid. Its a sort of -1 with a switch around.
sonasona
Posts: 869
Joined: Mon Sep 10, 2012 11:51 am

Re: Daughtrey's technique and Practice book 2

Post by sonasona »

Subtracting one letter from X = W
Subtracting one letter from D = C

Swap them around to get CW

Likewise Subtracting one letter from U = T
Subtracting one letter from G = F

Swap them around to get FT
custard
Posts: 45
Joined: Wed Sep 19, 2012 9:27 pm

Re: Daughtrey's technique and Practice book 2

Post by custard »

Oh, I didn't realise you could swap them around.
patricia
Posts: 2803
Joined: Mon Jan 30, 2006 5:07 pm

Re: Daughtrey's technique and Practice book 2

Post by patricia »

It is a mirror code.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

XD is to CW as UG is to ( ).

X is a mirror of C
D is a mirror of W

Mirror of U is F
Mirror of G is T

Patricia
custard
Posts: 45
Joined: Wed Sep 19, 2012 9:27 pm

Re: Daughtrey's technique and Practice book 2

Post by custard »

Thank you Patricia, that makes sense.
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