SOLUTION: How many distinguishable ways can 5 identical blue marbles and 2 identical yellow marbles be arranged in a line? This one stumped me...

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: How many distinguishable ways can 5 identical blue marbles and 2 identical yellow marbles be arranged in a line? This one stumped me...       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1067888: How many distinguishable ways can 5 identical blue marbles and 2 identical yellow marbles be arranged in a line?
This one stumped me...
Answer by ikleyn(52802) About Me  (Show Source):
You can put this solution on YOUR website!
.
7%21%2F%285%21%2A2%21%29 = %287%2A6%29%2F2 = 21 ways.