Consider the word…

Monday, 22 April 2019

7:25 PM

Machine generated alternative text:
Consider the word 
CARRATHOOL. 
a) 
How many words can be made by arranging all 10 letters? 
10!

 

All letters / duplicates

 

 

Machine generated alternative text:
b) 
How many of these words included RATH as a subword? 
X Expected answer: 2 0 2520

Find the number of slots that RATH could be placed in

| C | A | R | O | O | L |

 

With 6 letters left, there are 7 slots

 

 

 

 

 

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Machine generated alternative text:
Consider the word 
BUNDANOON. 
a) 
How many words can be made by arranging all 9 letters? 
9!

 

Machine generated alternative text:
b) 
How many of these words included UN as a subword?


TIP: WRITE OUT THE LETTER

B

U

N N N

D

A

O O

 

Then we have | divide by 2!*2!

 

Created with Microsoft OneNote 2016.