If Ajay takes 2 hours for B and completes other preceding tasks without delay, when can E starts?

From the solution of previous questions Ajay completed tasks at 3 pm.

_ > _ > _ > _ C > A, E ...........(i)
B > D > _ > _ > _ > _ ...........(ii)
Since E did not score the least, we get B > D > F (81) > C > E (62) > A
is the correct answer; B's score is maximum according to above sequence. F has scored 81 marks. Then B's score = 81 + 13 = 94 marks and D is between B and F. D is most likely to score 89 marks.

As per the given above question , we have
P, Q, R, S, T, V and W are sitting in a straight line facing north. Each one of them lives on a different floor in the same building which is numbered from one to seven. Q sits fourth to the left of the person living on the 6th floor. Either Q or the person living on the 6th floor sits at the extreme ends of the line.
From above it is clear that Q person live on the 6th floor .

On the basis of above given question , we can say that The floor number of every person is written by increasing 1 in their actual floor number but that of Q it is written by decreasing 1.Hence , Q is correct answer .

Given takes are A, B, C, D, E (here we will assume the condition to complete the work at the earliest)
From the 1^stcondition- Task A ? from 11 am to 9 am to 11 am,
From the 2^nd condition B ? From 11 am to 12 noon (Since it has started after completion of A)
From the 3^rd condition C ? From 12 noon to 1 pm
Task D's one hour work will be done along with B.
D's second hour work will be done along with C.
Hence to commence E, D must complete 3 hrs.
Hence timing of task D ? from 11 am to 2 pm and
After this the remaining task E ? From 2 pm to 3 pm

There are five tracks T1 T2 T3 T4 T5
Chines ---Indian (Chinese is let o Indian)
Chinese Indian and the Iraqi Nepalese Iraqi/Indian Englishmen.
Hence the Indian and the Iraqi should be in track 2 and track 4 in any order.

There are five tracks T1 T2 T3 T4 T5
Chines ---Indian (Chinese is let o Indian)
The arrangement with the given condition is not possible as it contradicts the given conditions.

There are five tracks T1 T2 T3 T4 T5
Chines ---Indian (Chinese is left of Indian)
The arrangement in this case could be :
Nepalese Iraqi Englishman Chinese Indian
So Iraqui will be on track 2.

There are five tracks T1 T2 T3 T4 T5
Chines ---Indian (Chinese is left of Indian)
Initial Position is V1 V2 V3 V4 V5 V6
Now from the 1st condition: V2 V5
From 2nd condition V6 V4 and none of them at position number three hence they cannot be at 1st three places
From 3rd condition V5 V1 V3
At 5th place even numbered book is placed.
From these information we can conclude that :-
V2 V5 V1 V3 V6 V4 hence 4 is correct.