In the following explanation, Fi → Fiat, Ma → Maruti, Ta → Tata, To → Toyota, Me → Mercedez, Fo → Ford and Hy → Hyundai.From conditions (ii) and (iii), we get the following arrangement.To __ __ __Fi Ma __ __As BMW and Hyundai are parked opposite to each other and at one end (from condition r) and Tata is between BMW and Mercedez (from conditions i) and, we get the final following final arrangement.
Fi           Me           Ta           BMWTo           Ma           Fo           Hy
If the positions of BMW and Fiat are interchanged, then BMW is parked opposite Toyota.

S is to the immediate right of W and W is to the immediate right of T. So, we get the following arrangement.

R and U are opposite to T and W respectively.

V is not sitting next to either R or T and there is no information about P and Q. Hence, we get the following arrangement.

If V is to the immediate left of P, then Q is to the immediate left of R.

As Bob is sitting between Charles and Elena and Douglas is sitting to the left of Elena. We get following arrangement.
Andy is opposite Bob. Therefore, the final arrangement is as follows.

Fred will be sitting right of Charles, if each person interchange his/her place with the person sitting opposite them.

As T sits to the left of P who is sitting opposite S, we get the following arrangement

From the above it is clear that P is T's husband.=> S is W's husband.V does not sit next to S. So V has to sit to the right of P. So Q and U will be sitting between S and T. Therefore, the final arrangement is as follows.

After effecting the changes, T sits between S and R.

As no two husbands sit adjacent to each other and they sit at the longer side, we get the following arrangement.
X is sitting to the right of C and Y is sitting to the right of A. X and Y are not sitting at the longer sides as W and Z are sitting at the longer side of the table. The arrangement will be,

W and Z are sitting at the longer sides but not adjacent to their husbands. i.e. Z is adjacent to A and W is adjacent to C. Since neither of Z and W is adjacent to her husband. Hence, D is adjacent to W and B is adjacent to Z. Thus we get the following arrangement.

When the places are interchanged as given, A will be sitting to the left of C.

The hands of a clock coincide 1 1 times in every 12 hours (Since between
11 and 1, they coincide only once, i.e. at 12 o'clock.
The hands coincide 22 times in a day.

In 12 hours, the hands coincide or are in opposite direction 22 times.

In 24 hours, the hands coincide or are in opposite direction 44 times a day.

Angle traced by hour hand in 12 hrs = 360^o
Angle traced by it in 11/3 hrs =(360/12) * (11/3) = 100^o.
Angle traced by minute hand in 60 mm. = 360^o.
Angle traced by it in 40 mm = (360/60) * 40 = 240^o.
Required angle = (240 - 110)^o = 130^o.