Practice!

Sample Problem

Sam and his 4 friends planned to meet at the cinema. Sam arrived at 7:10 pm. The others arrived at different times. At what time did each of them arrive?

Sara arrived 20 minutes after Sam: PM

Tom arrived 8 minutes before Sam: PM

David arrived 15 minutes after Tom: PM

Lily arrived 5 minutes after Sara: PM

Solution

     

Sam: 7:10 pm

Sara: 7:10 pm + 20 min = 7:30 pm

Tom: 7:10 pm-8 min = 7:02 pm

Tom: 7:02 pm

David: 7:02 pm + 15 min = 7:17 pm

Sara: 7:30 pm

Lily: 7:30 pm + 5 min = 7:35 pm