Helen needs to be at work at 6:20 A.M. It takes her 55 minutes to get ready in the morning and 25 minutes to drive to work. What is the latest time Helen can get up in the morning without being late for work?

Mr. Chua worked 4 h 15 min in the morning and 5 h 40 min in the afternoon. He had a 1.5-hour lunch in between work. If he left his office at 7.25 p.m. At what time did he start working in his office? Give your answer in 24-hour clock.

Your boss's itinerary is below. She has just asked you to schedule a last-minute lunch meeting before she goes home. The restaurant is 25 minutes from her client's office. 8:30 a.m. to 9:30 a.m. : Drive to client 9:30 a.m. to 11:00 a.m. : Prepare for meeting 11:00 a.m. to 12:45 p.m. : Meet with client 12:45 p.m. to 1:45 p.m. : Drive home What's the earliest time she can arrive at lunch?

Walking at 4 ½ km/hr a worker reaches the factory 15 mins late. If he walks at 6 km/hr he will be 7 ½ minutes early. The distance of the factory from his house is:

A can do a piece of work in 8 hours. B can do same piece of work in 12 hours. A starts working at 9AM and they worked on alternative hours. At which time work will be finished?

Tori's family is leaving for a camping trip in the morning. Marshall Meadows, where they will camp, is 325 miles away. Tori's parents plan to drive for 3 hours in the morning, then stop for lunch. They will complete the trip in the afternoon. They expect their average speed will be 50 miles per hour. How many hours will they drive in the afternoon?