10 points who ever solves this problem?

Question

When Yuri Gagarin left earth in 1961 it took 89:34 minutes to circle the earth How many minutes and seconds less than 2 hours is this? Sputnik left earth at 9:07 and returned 107 minutes later. Exactly what time did it return?

Answer 1

you need to know that:

60 minutes in an hour

60 seconds in a minute

2 hours = 120 minutes

120 - 89:34 = 30:26 minutes:seconds

9:07 + 107 minutes = 9:07 + 1hour 47 minutes...

you do the rest [ its before 11:00 though...)

hope his helps

Answer 2

uh a hint plz lol

Answer 3

89:34 can be rewritten as 1 hour, 29 minutes, and 34 seconds.  Two hours can  be rewritten as 1 hour, 59 minutes, and 60 seconds.  So,...

1h 59m 60s

-1h 29m 34s

~~~~~~~~~

         30m 26s -  the answer is that Yuri Gagarin took 30 minutes, 26 seconds less than two hours to circle the Earth.

107 mintues is 1 hour and 47 minutes, so advance 9:07 by an hour (10:07), and add 47 minutes - it was exactly 10:54 when Sputnik returned to Earth.

Answer 4

1. 30 mins 26 seconds

2. 10:54