Question

For the word BANKERS, find the number of possible combinations of letters

Answer 1

most of the questions i will post i have the answer... but i dont know how to set up the problem to solve it??

Answer 2

for this i would have done 7 C 6 however, the answer is actually 5040??

Answer 3

7*6*5*4*3*2*1=?

Answer 4

but isn it asking for combinations? i think my teacher made the answer key wrong

Answer 5

here all letters have to be used

Answer 6

if we put any letter at 1 out of 7, then we are left with 6 letters only to fill the second spot.
and so on

Answer 7

lordofpens, the term "combination" is sometimes a bit murky

Think of a locker. The "combination" lock is really a permutation lock because order matters. Something like 347 is different from 743. And yet, somehow "combination lock" has stuck instead of "permutation lock"

Answer 8

@jim_thompson5910

im sorry, i think i forgot part of the question... it's actually

For the word BANKERS, find the number of possible combinations of letters given 6 at a time

Answer 9

will that change the answer?

Answer 10

you need to compute 7 P 6 instead of 7 C 6

Answer 11

ohh ok. i guess the "combination" in the sentence is misleading

Answer 12

yeah

Answer 13

in that case 7*6*5*4*3*2=?
answer is still the same.