Question

( frac{partial}{q} )
( dot{V} )
( V )
( r )

# (d) 5!X8!X 4!6! 149 ngs ver w In how many ways 21 red balls and 19 blue balls can arranged in a row so that no two blue balls are together? (a) 1,540 (b) 1,520 © 1,560 (d) None 5.19

Solution