DSE 2009 doubt ..

[Arushi :))]

A company has 100 employees , 40 men & 60 women . There are 6 male executives . How many female executives should be there for gender & rank to be independent ?
a. 9
b. 6
c. 10
d. 8

[Akshay Jain]

hahaha....me to bhul hi gya tha is ques ke bare me...

[SoniaKapoor]

P(male intersection executive)=P(male).P(executive)
6/100=40/100*(6+x)/100, where x is the no of female executives