Question: The cultural week started with which competition?
Explanation:
Create a table with three columns – date, day and competition – as shown below:
Since there were 6 competitions and 8 days, and only one competition was held per day; it means that exactly 2 days were completely free i.e. there was no competition on that day. It is given that these two days were Thursday and Sunday.
Now, street play was held on Monday.
Thus, the table becomes:
Flash-p was conducted a day before the debate and there was a gap of 2 days between the debate and the group song competition.
Therefore, there are 2 possibilities: GS __ Flash-p Debate or Flash-p Debate __ __ GS
Now, for flash-p and the debate to be on consecutive days, only two possibilities exist – Friday and Saturday or Tuesday and Wednesday.
If the debate is on Wednesday, the group song will have to be on Sunday, which is not possible.
Therefore, the flash-p competition and debate were on Friday and Saturday respectively. Therefore, the Group Song competition has to be on Tuesday.
Since the rock band competition was not held on the last day, it could have only been conducted on the first day i.e. October 19.
Therefore, the folk dance competition was held on the last day i.e. 26 October.
Thus, the final table is as shown below:
Thus, the cultural week started with the rock band competition.
Hence, option (d).