Answers

1. Answer:

   6: 20

   Step-by-step explanation:

   (half past 8 = 8:30)

   First, we can calculate what 2 hours earlier was.

   When it ends at 8 : 30, two hours before that would have been 6 : 30 (8 – 2 = 6)

   Then, 10 minutes before that would be 6 : 20 (30 – 10).

   So, from working backwards, the concert started at 6 : 20

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2. Answer:

   The time of the concert starting is 6:20

   Step-by-step explanation:

   – It ends at half past 8

   half an hours is 30mins

   This means 8:30

   – 2 hours and 10 minutes

   2 hours before 8:30 is 6:30

   10 minutes before 6:30 is 6:20

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