What is the earlist time when Ajay can complete all tasks?
HPPSC HPAS - 2021,
Answer: B
All tasks can be done by 3 p.m.
With B taking one hour, A runs 9 to 11, B 11 to 12 and C 12 to 1. D runs alongside B and C from 11 a.m. for 3 hours, so it ends at 2 p.m. E needs A, B, C and D complete, so it starts at 2 p.m. and takes one hour, ending at 3 p.m.
C finishes at 1 p.m. but D does not, so 1 p.m. and 2 p.m. are too early. 4 p.m. needs a delay that is not in the information.
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