Posted by **Lisa** on Friday, January 18, 2008 at 9:47pm.

For PLANETS, find the number of :

4-letter words which must include a L and A

For MAMMALS, find the munber of:

a) 7-letter words

b) 7-letter word beggining with MA

c) 4-letter words

i) all letters different

ii) 2 letters same,2 different

iii) 2 pairs same leeters

iv) 3 letters same

- Data Management -
**drwls**, Friday, January 18, 2008 at 10:25pm
Can letters be used twice? Do the words have to be in the dictionary?

- Data Management -
**Lisa**, Friday, January 18, 2008 at 11:01pm
no

- Data Management -
**drwls**, Saturday, January 19, 2008 at 1:50am
In that case, for PLANETS, the possible four-letter combinations (in any order) are 5 x 4 = 20. For each combination, there are 4! = 24 ways (permutations) for arranging the letters. That makes 20x24 = 480 possible "words". Most will not be in the dctionary.

Try your own reasoning with the MAMMALS problem. We will be glad to critique your work.

## Answer this Question

## Related Questions

- data management - For MAMMALS, find the munber of: a) 7-letter words b) 7-letter...
- spelling scrabble - Hello...I need at least a 6 letter word. The third letter ...
- Maths - 1)A two-figure number is written down at random. Find the probability ...
- GR.12 DATA MANAGEMENT - How many ways are there to arrange the word: MATHEMATICS...
- English - I'm a 7 Letter Words, You Read me daily, My 5, 6, 7th Letter increases...
- 5th grade math - How do you do letter equations? "Each letter in the equation ...
- history - need these letters unscrambled to make a nine letter word relating to ...
- Math - From the word COMBINE, how many different 7 letter words are possible...
- sensitive probability plz help - (i):find the number of four letter words that ...
- language arts - There is this paper that my teacher gave me and its sooooooo ...

More Related Questions