I have doubt in down move factor we should not take as. 90 as down move. We should take. 95.
3300×1.05= 3465
3300 3465×.95 =3300
3135×1.05=3300
3300×.95=3135
and my guess is since this is futures index risk neutral probability should take 1.
and the present value of (3200-3135=65) is 64.XX.which is option c. It is logical guess only.
Practice exams also had such questions where Up and Down moves were given and D was not equal to 1/U, so I took the increase and decrease that were given in the conditions - it clearly stated that it is expected to increase by 5% and decrease 10%.