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prohojiy [21]
3 years ago
6

an express bus left town A at 18:15 hours and reached town B at 21:05 hours.how long did the journy take?

Mathematics
2 answers:
Dimas [21]3 years ago
7 0
Hi!

Let's make a small chart

18:15 left town B
19:15 1 hour
20:15 2 hours
21:15 3 hours 

Since they actually arrived at 21:05, and not 21:15, we know it took more than 2 hours, but less than 3 hours. 

Subtract the extra time
21:15-21:05 = 00:10

Since there are 60 minutes in an hour, (60-10=50) we know it took 2 hours and 50 minutes. 

Another way to solve this would be to convert the times to decimals, and subtract,
21.05-18.15 = 2.9
Then convert the decimal to the time. 

9/10 of an hour = 50 minutes
It took 2 hours and 50 minutes

Hope this helps! :)
Leno4ka [110]3 years ago
3 0
It would take 2 hours and 50 minutes to get to town B
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