In how many different number of ways 4 boys and 3 girls can sit on a bench such that girls always sit together.
Pick one.
A) 720
B) 740
C) 760
D) 770
E) 790
Option '720'
<result>A</result>
In how many different number of ways 4 boys and 3 girls can sit on a bench such that girls always sit together.