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Arte-miy333 [17]
3 years ago
11

Alex usually runs for 21 hours a week,

Mathematics
1 answer:
wel3 years ago
5 0
Alex runs 21 hours a week.
Since, a week has 7 days, he runs, 21 hours in 7 days.
Now,
In 7 days, Alex runs 21 hours
In 1 day, Alex runs 21 / 7 hours
                            = 3 hours
In 3 days, Alex runs 3 * 3 hours
                           = 9 hours.
 
So, If he is unable to run for 3 days, he loses 9 hours of his training time.
 
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