dude. you are posting the same problems in DS and PS !! please refrain such activity.

Anyways answering your qn

Let R, C be two sets where R is # of ppl having return tickets and C is # of ppl having their car aboard.

Let T be total number of passengers

Then given # of ppl who have ONLY return ticks = 0.6 R

=> # of ppl who have ticks and cars aboard = 0.4 R

but given is that # of ppl having ticks and cars aboard = 20% T = 0.2 T

=> 0.4 R = 0.2 T

=> R/ T = 1/2

=> 50% is the answer..

Neo

Sorry. I am pretty new to this forum and i somehow just copy and paste the on the subject...so i made a mistake on the subject.

Answer should be 50%

whats the OA ?

Hi Aks,

the answer is 50%. you are correct.