Question

( n ) balls can be orcanged
( operatorname{in}(n-1) ! ) ways
in cincle.
Thus, 6 balls can be
arrarped in ( 5 ! ) ways
since
2
balls of 3 colowrs
are iclentical
Ways ( =frac{5 !}{2 times 2 times 2}=frac{1 times 2 times 3 times 4 times 5}{2 times 4 times 7} )
( =15 ) ways.

# 12 Six balls are identical in size ; two are red, two white and two green. In how many different ways can they all be arranged in a circle touching each other? na lincluding the driver's ceat) In how many

Solution