Question

Gina and Lucy go to the library at 3:30 p.m. They need to be at home at 4:45 p.m. It takes them 15 minutes to walk to the library. How many minutes can they spend at the library?

Answer 1

4:45 -3:30 -2*(0:15) = 0:45

Gina and Lucy can spend 45 minutes at the library.

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They will get to the library at 3:45. They must start home by 4:30. From 3:45 to 4:00 is 15 minutes, and it is 30 more minutes to 4:30. The time they can spend at the library totals 45 minutes.