1):
Say M1 M2 M3 M4 are men and W1 W2 W3 W4 are women.
S1=No. of ways to chose first member is 8.
Now suppose selected member is M1 so W1 would automatically exclude from further selection.
2)
Now we have M2 M3 M4 W2 W3 W4
S2=No. of ways to chose Second member is 6.
Now suppose selected member is M2 so W2 would automatically exclude from further selection.
Now we left with M3 M4 W3 W4
same for 3rd memeber
3)
S3= 4
4)
S4=2
Total s1*s2*s3*s4 way if ordering matter
IF ordering doesnot matter than : $\frac{S1*S2*s3*s4}{4!}$
$\frac{8*6*4*2}{4!\frac{}{}}$ ans is 16
@ Arjun sir i m doubtful this approach is orrect or not???