Comprehension Passage
Direction: The following bar graph shows the number of hours taken by 8 difference people complete a work on their own in daytime (7am to 7pm) and night-time (7pm – 7am).
If S started work at 7 pm at night and after some time, Q and T joined. Then, T left after working for 3.5 hours, then after 30 minute S and Q stopped working. Remaining work can be completed by Q working for 1 hours and U working for 5 hours during daytime, totally for how many hours S worked?
1
7 hrs 20 min
2
8 hrs 30 min
3
8 hrs 45 min
4
7 hrs 40 min
5
6 hrs 40 min