Simple SAT Math Question

Test Preparation SAT Preparation
1

<p>In a certain flower shop, only 3 vases of flowers and wreath can be displayed, in this order, at one time. If there are 10 vases and 4 wreaths to choose from, how many different arrangements of vases and wreaths are possible?</p>

<p>a) 17
B) 34
C) 120
D) 2,880
E) 4,000</p>

<p>I know the correct answer of this question and usually i do figure them out easily. The only problem I'm facing is that I don't know a short method that can be used to solve such questions. Any help will be greatly appreciated.</p>

2

<p>I hope this is right:
10!/7! * 4 = 2,880</p>

3

<p>Yah, thts the correct answer, Im sorry but I can't understand ur working before the = sign, can u plz explain it to me, Thanks :)</p>

4

<p>ure choosing 3 flowers from 10 flowers.
so u choose one, 9 remaining. choose another one,8 remains, last one, 7 left.
at first,u hav 10 choices, then 9 then 8.
10 X 9 X 8</p>

<p>u choose 1 wreath from 4 wre.
so there are 4 possible ways.
10 X 9 X 8 X 4 = whatever #~
wat he did up there involves this combination permutation, its very confusing at times lol. it is, there are 2 formulas,i dnt remember,but i get confused.
use logic, SAT is a reasoning test XD</p>

5

<p>Thanks Ren, I just hate the SAT with a burning passion :(</p>

6

<p>You should learn about permutation and combination.</p>

7

<p>Yah I guess I'll have to, taking the test in november for the first time. I wanna score at least above 700 in Math.</p>

8

<p>I took the SAT several months ago and there weren't any permutation/combination problems.. luckily for me, because I managed an 800 :] But that would NOT have happened if they'd been on there, because I can't understand them without a bit of review lol.</p>

9

<p>Your sooo lucky, I hope it happens with me as well, I just want lots and lots of geometry, and algebraic equations :)</p>

10

<p>What level of difficulty is this question?</p>

11

<p>^^Osap I hope you get lucky as well! I think that a lot of SAT scores are based largely on luck :]</p>