Question

Before recess, Marcy has math class for 1 hour and 50 minutes. Recess lasts for 30 minutes and ends at 11:55 A.M. What time does her math class start?

Answer 1

11:45 - 30 = 11:15

11:15 - 1 hr: 10:15

10:15 - 50 = 9:25

her math class starts at 9:25